If f(x)=2x squared + 1 and g(x)=x squared-7 find (f-g)(x)

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.