12. The formula for the volume of the right circular cylinder shown is V = ar?h.
If r = 2b and h = 5b +3, what is volume of the cylinder in terms of b?

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c