Perform the indicated operation. Simplify, if possible.
+ 
- 
A. - 
B. - 
C. 
D. 
Answer: A
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Use the Pythagorean Theorem to find the missing length in the right triangle. Use a calculator to find square roots, rounding, if necessary, to the nearest tenth.
A. 28 ft B. 7.5 ft C. 56 ft D. 7 ft
Find the domain of the given function. f(x) = 
A. (-?, -5] ? [11, ?) B. [-11, 5] C. (-?, -11] ? [5, ?) D. [-11, ?)
Find the present value or future value. Round to the nearest cent.Present Value: $5700Interest Rate: 10%Time: 270 daysFuture value: 
A. $6084.75 B. $5302.33 C. $6121.64 D. $6127.50
Solve.Carole's car averages 14.5 mi/gal in city driving and 22.1 mi/gal in highway driving. If she drove a total of 651.2 mi on 36 gal of gas, how many of the gallons were used for city driving?
A. 22 gal B. 19 gal C. 17 gal D. 21 gal