Answer:
he made the error in step 2
Step-by-step explanation:
total units of ration = 4 +7=11
so, ratio would be (4*33)/11 : (7*33)/11
12 : 21 is the answer.
Did you understand?
Answer:
$6.30 per DVD
Step-by-step explanation:
25.20/4= 6.3
Is the equation2x2(9x+2-16) if so you would do -16+2 first which is -14
Then multiply 2x2 equals 4
4(9x-14)
Multiply the 4 to 9x and -14
You get 36x-56