Let x be his score on the last test so that to get an average of 90
His to average score at year end (4 terms), including the last is:
(92 +94 + 98 + x)/4 =90
(92 +94 + 98 + x) =4 x 90
x = - 274 + 360
x= 86
Sorry I don’t speak English I wish I could really help you I could help you if you just translate into Spanish I’ll tell you the answer sorry
It would be 400. Hope this helped. :)
Answer:
or 4
Step-by-step explanation:
