Find the sum or difference.

$274.65 -$110.38

Find the average of $0.90,$0.42, $0.78,$0.13, and $1.25 to the nearest cent.

What difference does $0.5 \%$ make on a loan? To explore this question, find (to the nearest dollar) the monthly payment and total interest paid over the life of the loan for each of the following.

(a) An auto loan of $\$ 15,000$ at $8.0 \%$ versus $8.5 \%$, both compounded monthly for $4$ years.

(b) A mortgage loan of $\$ 80,000$ at $6.75 \%$ versus $7.25 \%$, both compounded monthly for $30$ years.

( c ) A mortgage loan of $\$ 80,000$ at $8.0 \%$ versus $8.5 \%$, both compounded monthly for $30$ years.

Find the average of $9.14,$3.83, $1.94, and$4.13.

Evaluate each integral. Graph the region of integration, reverse the order of integration, and then evaluate the integral with the order reversed.

$$\int_{0}^{4}\int_{y^2}^{2\sqrt{y}}(1+2xy)\ dx\ dy$$

Solve using the indicated operation

$248.72 -$9.87

Find the difference.

$$\$852.44 - \$729.39$$

Subtract money amounts.

Find the difference. $\$840.27 - \$662.32 = \$177.95$

$$\begin{array}{l c l} \text{3a.}~~ \$2,843.67 - \$1,909.14 &~~~~~~~~~& \text{3b.}~~ \$526.01 - \$493.64\\ \text{3c.}~~ \$759.45 - \$602.89 &~~~~~~~~~& \text{3d.}~~ \$2,005.75 - \$1,945.36\\ \end{array}$$

A couple purchasing a home budget $\$ 1800$ per month for their loan payment. If they have $\$ 20,000$ available for a down payment and are considering a $25$-year loan, how much can they spend on the home at each of the following rates?

(a) $6.9 \%$ compounded monthly

(b) $7.5 \%$ compounded monthly

Use a spreadsheet or financial program on a calculator or computer to complete the problems.

Develop an amortization schedule for a $10$-year mortgage loan of $\$ 80,000$ at $7.2 \%$ compounded monthly.

Evaluate the integral.

$$\int_{0}^{1}\int_{0}^{x}(x+y)\ dy\ dx$$

Find the sum.

1. $842 +$32.89

At the end of a craft show, Luma Villa deposited her receipts in a checking account: (bills) 19 twenties, 53 tens, 14 fives, 83 ones; (coins), 17 quarters, 1 nickel; (checks) $64.50 and$49.25. She got back in cash 3 fifties and $5 in dimes. What was her total deposit?

On April 1, Preston McCord deposited $1,400 in a passbook savings account that pays annual interest of 3 .2 % compounded quarterly . If he made no deposits or withdrawals in the account , what interest could he earn by keeping his money on deposit until October l?