Solve the proportion.

10/a=15/30

a. 10

b. 2

c. 5

d. 20

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7