11. Anna's goal is to walk 12 miles a week. This week, she walked 1 and 2/3 miles for 6 days in a row. How many more miles does she need to walk to
reach her goal? (In your answer, provide just the number, no words) *

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Solve for x where 0 equation: cot^2x+2cotx+1=0