solve equations with unknown variable

.25x = 12

Referring to Exercise 43, the annual report of Dennis Industries also gave these returns on stockholder equity for the same five-year period (in percent) : 13.2, 5.0, 10.2, 17.5, and 12.9. a. What is the arithmetic mean return? b.

The average time for four 400-meter runs was 53.4 seconds. If the first run was 52.7 seconds, the second run was 53.3 seconds, and the third run was 54.1 seconds, what was the time for the fourth run?

What is the percent of 28 of the 32

An ant walks about 3 inches per second how many miles per day could an ant travel if walked without taking a break second. How many miles per day could an ant travel if walked without taking a break

What is the solutions to the 1/x = x+3/2x^2? A) x=-3 B) x=-3 and x=0 C) x=0 and x=3 D) x=3

8 tenths minus 5 hundredths

A carton can hold 1000 unit cubes that measure 1" x 1" x 1" what are the dimensions of the carton using unit cubes

Drag the correct symbol into the box to compare the expressions. 8+7-22 3² + 2 ≠ =

ling gave some of her blankets to charity, decreasing her total number of blankets by 9. After she gave her blankets away she had 11 left

If a certain cannon is fired from a height of 9.8 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at time, t, in seconds, is found by the function h (t) = - 4.9t² + 30.5t + 9.8.