You need more info than that. it is not enough.
Length= 2x-1. 2(7)-1=13
Width=X. =7
2x-1+2x-1+X+X=40
6x-2=40
Add 2
6x=42
Divide by 6
X=7
Answer: The formula to determine the multiplier is M = 1 / (1 - MPC). Once the multiplier is determined, the multiplier effect, or amount of money needed to be injected into an economy, can also be determined. This amount is calculated by dividing the total amount of spending needed by the multiplier.
Step-by-step explanation:
Im late do you still need the answer aa it wont send hope that helps