Answer:
92
Step-by-step explanation:
x= the ideal mark for his third test
100 + 63 + x/3 = 85
163+x=85x3
163 + x = 255
x=92
He would need to get at least a 92 to have the 85 average.
the answer is 56.00 dollars
I did this
2 3/8
y = x
line has a slope 1 and passes through the origin . So the equation is y = x
it should be 90
I hope this helps!