math_celebrity Administrator Staff member Nov 24, 2023 #1 John has grade of 88 and 92 on his first two history test. What must he get on his third test so that his average is at least 90 Using our missing average calculator, we get: 90
John has grade of 88 and 92 on his first two history test. What must he get on his third test so that his average is at least 90 Using our missing average calculator, we get: 90