Answer: 36 shirts and costs $432
step by step:
first make an equation with the amount of sold shirts being equal to cost of making them -
12x=10x+72 where x is the number of shirts
then, subtract 10x from 12x to get the variable on the same side -
2x=72
finally, divide by 2 to isolate x
x=36 shirts
to figure out the cost, substitute 36 for x in 10x+72
10(36)+72= 360+72= $432
Answer:10 to the power of 8
Step-by-step explanation:since 10 is used as a factor 8 times, the exponent is 10 to the power of 8.
Answer:
the sample size n= 771
sample proportion is p = 1/2
Step-by-step explanation:
<u>Step1:</u>-
marginal error formula is 
but if 'n' is sample size then 
Given margin error is 36% = 0.036

on simplification , we get n= 777 polling agencies
<u>Step 2</u>:-

substitute values , we get

after simplification, we get

squaring on both sides, we get

multiply 'p' inside

cross multiplication '4' and simplify
........(1)
finding 'p' value
The equation (1) is of the form 



<u>conclusion</u>:-
The sample size is 771
the sample proportion is p = 