At each mile marker for the first five miles of a marathon, Ellie was 18 seconds, 9 seconds, 14 seconds, 6 seconds, and 3 seconds ahead of her goal pace. What was her mean time ahead of her goal pace?

which is bigger 6 kilometres or 54,000 millimeters

What is 2/3 in lowest terms

Marina is solving the equation below by using the multiplicative inverse, or the reciprocal. One-fifth (x minus 2) = 20 By which number should Marina multiply both sides of the equation as the first step in solving it?

A TV that usually sells for $170.88 is on sale for 20% off. If sales tax on the TV is 7%, what is the price of the TV, including tax?

Factor 16x2 + 121 over the set of complex numbers. Enter your answer in the box.

One revolution of a 40 cm diameter ball compared to a 20 centimeter diameter ball is: A. 2 times as great. B. 4 times as great. C. The same D. 1/2 times as great.

Complete the equation of the line through (2,-2) and (4,1). Use exact numbers.

The distance between two towns is 15 miles. There are 20 distance markers evenly spread throughout the road between the towns. Jessie drove 45 of the distance when she was forced to stop because she ran out of gas.

A parking space shaped like a parallelogram has a base of 18 feet and a height is 7 feet. A car parked in the space is 15 feet long and 5 feet wide. How much of the parking space is not covered by the car?

What is the addition of x - 7=12