Answer:
2.8÷4
Step-by-step explanation:
if 2.8 is the 4th lap, you have to divide it by 4 to get the 1st lap.
a
x=-11
y=-1
x=4y-7
2x+9y=-31
2(4y-7)+9y=-31
8y-14+9y=-31
17=-31+14
17y=-17
x=4(-1)-7
Answer:hn kjbokn
