The ratio of slow to fast songs on the CD is 4:9 if there are 18 fast songs on the CD how many slow songs are there PLS HELP

x = 12

y = 15

step-by-step explanation:

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

the answer is a if my teacher taught me correct