Which expression is equivalent to 3^4 ⋅ 3^−9?

option B

Step-by-step explanation:

3^4 X 3^-9

3^-5

1/3^5

Because it has the same base it is the same #

the exponent you would add together, flip the expression because you don't want to deal with negative expressions

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

answer: x=60