Which two ratios form a proportion?

A) 1 : 4 and 5 : 20
B) 1 : 4 and 20 : 5
C) 4 : 1 and 20 : 4
D) 4 : 1 and 4 : 20

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

What power can you write to represent the volume of the cube shown? write the power as an expression with a base and an exponent and then find the volume of the cube