Answer:
42
Step-by-step explanation:
divide the total by the cost of each invite
X*y=72
x = 5y-2
x=72/y
72/y=5y-2
72=5y^2-2y
5y^2 -2y - 72 = 0
(5y+18)(y-4)=0
y = -18/5 discard
or y = 4
4x=72
x=18
(18,4)
You can us calculatorsoup online to find answers.
Answer:
12 centimeters
Step-by-step explanation:
30/2.50 is 12
79*73=5667 that is all it is you can look at the picture to see how i did my work