Solve for p, c, s, & t: 2p+c+s=20; t+2c+s=18; c+t+2c=16; s+c+p+t=21

Estimate the quotient what is 15.1 divided by 7

The speed of light is 3 x 10^5 kilometers per second. What is that in standard form?

Find the inverse of y=2x^2+2

If tan theta = 12/5 and cos theta < 0, what is sin theta? a. 12 b. 5/13 c.-5/13 d. 12/13 e.-12/13

Art mows 1/8 of an acre in 1/4 of an hour. How many acres does Art mow in an hour?

Dave rides his bike 2 miles in 6 minutes. At this rate, how many miles can he ride in 60 minutes?

25% of 180 is? Show your work

A woman leaves home and walks 3 miles west, then 2 miles southwest. how far from home is she, and in what direction must she walk to head directly home?

the first, second and fifth term of a linear sequence (A. P) is / are three consecutive terms of an exponential sequence (G. P), if the first term of the linear sequence is 7. Find the common difference.

8x+c = 5d solve for x