Answer:
21
Step-by-step explanation:
just took quiz
Uhh my brains hurts looking at that
Answer:
63
Step-by-step explanation:
Ty worked 4 hours ad earned $28. This means that he earned $7 per hour. So, 7 times 9 is equal to 63. Which means that Ty will earns $63 in 9 hours.
It’s might be D
Explanation 20 characters
The way that i learned this was first set > to = worry about it later
so 9x-7i=3(3x-7u)
so 9x-7i=9x-21u
the x cancel out
so 7i= -21u
now isolate the variable
so
7i/-21=u
so
u=-i/3
