If a = 2, find b, c, and d.

a + b = c

a-c=d

a+b=5

Jenni is surveying shoppers about their use of the new customer service center in a store. Which question in her survey is a statistical question Who is the manager of the customer service center?

Dinesh's score improved by 275% which decimal is equivalent to 275%?

Two tons of water is pumped into a tank 15 ft. high in 5 minutes. Determine the power output of the pump. (Note: One ton is equal to 2,000 lb. and remember to convert the minutes to seconds.)

Simplify (15x2-18) / 6

Keneesha is would like to use her money from school jobs to purchase an Xbox, which cost $200 she makes $6 per hour babysitting and $7 per hour cleaning houses.

Divide the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x. (2x3 + x4 - 6x2 + 11x - 10) (x2 + 2 - x)

What is 3.75 rounded to

A child takes a nap averaging three hours and gets an average of 12 hours of sleep at night. Nap time and night time sleep can each vary by 30 mins. What are the possible time lengths for the child's nap and night time sleep? ... ?

4x - 10 ≥ 22 or x - 5 < - 6

What does control for eximerment mean .