Which of the following is the same as 8.4×10^2

Angles 1 and 2 are complimentary angles. angle 1 = 52 degrees. what is the measure of angle 2?

2f(x)= x+3 if 4 < x < 8 2x if x 28 2

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?