Answer:
the hat would cost $6.495 which if you round the answer it would be $6.50
Step-by-step explanation:
12.99*50%=12.900*.50=6.495 round to 6.50
Total cost=variable cost+fixed cost
variable cost=1.25 times x or 1.25x
fixed cost=3
y=1.25x+3
f(x)=1.25x+3 is da rule
The other person did not explain so I will:
(68+79+74)= 221/3 =73.7
80 x 4 = 320
320-221 = 99
He must get 99 on his 4th test.
Thanks
Answer:
Step-by-step explanation:
