Matrix C has the dimensions 7 X 2 and Matrix D has the dimensions 2 X 7. Determine the dimensions of the matrix CD, if it is possible. Explain why if it is not.
Group of answer choices

Matrix CD would have the dimensions 2 X 2

Matrix CD would have the dimensions 2 X 7

Matrix CD would have the dimensions 7 X 7

These matrices cannot be multiplied because their dimensions don't align.

the perimeter is increased by a factor of 2

idk

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

your answer is  

d.

196.5 m2

step-by-step explanation: