Answer:
The score of the fourth test should be 82
Step-by-step explanation:
Let the score of the fourth test be x.
(3×90+x)/4=88
270+x=352
x=82
8.33km; approximately 8km
180n - 360 = 0
180n = 360
n = 2
Hope this helps!! :)
Not sure but you can figure it out.
56=8+(9-1)d
48=8d
d=6
t22=8+(22-1)6
T22=134