If it is known that a+b/a-b=c, find the following: 2a-2b/5a+5b

A quality control officer randomly checking weights of pumpkin seed bags being filled by an automatic filling machine. Each bag is advertised as weighing 400 grams. A bag must weigh within 2.1 grams in order to be accepted.

You have 15 marbles. You put 5 marbles into each group. How many groups can you make

What is the area of a circle with a circumference of 11 pi

Li is running a race around the school track he runs 0.327 kilometer during the first half of the race. What is the distance that he travels in the first half of the race rounded to the nearest hundredth?

A countertop is 16 ft. long and 3 ft. wide. what us the area of the counter top in square meters

Use the following for long division x^2+3x+1sqrt 3x^4+7x^3+2x^2+13x+5

A number plus 17 is 25

293.08 + 14 + 2.719 =

The factory workers make 751 toys per day if they work 5 days per week how many toys will the workers make in 3 weeks

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?