Answer:
$20
Step-by-step explanation:
7 x __=70
2 x ____=___
7 x 10 = 70
2 x 10
=20
W=A\L
Divide L from both sides
The L in the right cancels out
I’m pretty sure that’s probably a nickel
Y^9-y^3 can also be written as y^9-y^3=x
so it is also equivalent to x+y^3=y^9
and x-y^9=-y^3
add 0+1+2+3+4 = 10
divide 10÷5 = 2
add 15+8+3+3+1 = 30
divide 30÷5 = 6
the ratio is 2:6 which simplifies to 1:3 by the means of lates per student. In other words there is one late per 3 students.