Your answer is 89 since 4*10=40)+5*5=25)+2*12=24, add all the results up and get 89.
Answer:
y=4x-2
Step-by-step explanation:
the equation of a straight line is given by
y=mx+c
where m is gradient slope and c is y - intercept
y=4x-2
88+ 92+ 82+ 94 + x
———————————— = 90
5
x= 5th test

recall PEMDAS, MD are before AS, and both are performed from left to right.