420 is 12% of what number?

3 = g/4 - 5 what is the answer?

The mean breaking strength of yarn used in manufacturing drapery material is required to be at least 100 psi. Past experience has indicated that the standard deviation of breaking strength is 2.3 psi.

John ran the 100-m dash with a time of 9.979.97 sec. If this pace could be maintained for an entire 26 dash mi26-mi marathon, what would his time be?

What is the slope of a line that is parallel to y = (1/2) x+3

Find the distance between 4.8 and - 3.6

It took Lou 2 1/2 gallons of paint to paint one fence. How many gallons of paint will it take Lou to paint 6 fences that are the same size? Express your answer in simplest form.

The ratio of the number of boys to the number of girls in a school is 4:5 there are 95 girls in the school work out the total number of students in the school

What is the domain and range of f (x) = -3/4√x-1+4

What is 4.2X-1.4Y=2.1-2X

Factor x2 - 8x + 15. Which pair of numbers has a product of ac and a sum of b?