Solve the problem.Denise took a trip. She drove for x hours at 30 miles per hour. Then she cycled for y hours at 10 miles per hour. Write an equation that shows the possible combinations of hours if the total distance that she traveled was 
A. 30x + 10y = 210
B. 300 + xy = 210
C. 10x + 30y = 210
D. (30 + x) + (10 + y) = 210
Answer: A
Mathematics
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Solve the problem.Andrew has $16 deducted from his paycheck each week for health insurance. This amounts to 10% of his gross income. What is his gross income?
A. $150 B. $210 C. $1600 D. $160
Mathematics
Use factoring to solve the equation.x2 + 10x = -16
A. -2, -8 B. 2, -8 C. 2, 8 D. -2, 8
Mathematics
Identify as an equation or an expression.-3(8 - x) + 
A. Expression B. Equation
Mathematics
Perform the indicated operation. Write the result in standard form.7i + (-9 - i)
A. 9 - 6i B. -9 + 6i C. 9 - 8i D. -9 + 8i
Mathematics