Arestaurant owner estimates that his restaurant will serve 430 customers the first week it is open. the actual number of customers the first week is 400. find the percent error.

7.5%

Step-by-step explanation:

30/400→3/40

40÷3=0.075

0.075=7.5%

so the answer is 7.5%

12m

step-by-step explanation:

square root means have of a number so have of 3 is 1.5 then multiply it by 8 and you get your answer!