Answer:
D.
Step-by-step explanation:
3x + 4 is another way of writing 2 + 3x + 2, if you add the 2's together you get a four (3x + 4).
Answer:
100 x 2 x10x5
Step-by-step explanation:
Answer: 80 = 20 + 5v
Step-by-step explanation:
This equation allows you to find out how many visits would create an even rate for both gyms.
Answer:

Step-by-step explanation:
First get the l by finding the square root of the area
= 5cm
since 1cm = 5ft
what about 5cm =?
(5cm×5ft)/1cm
l=25ft
area of the actual floor is l × l

which is 
The student should have phrased it to be "the difference between the product of 5 and y and 15", as the way the student writes it implies that 5y is being subtracted from 15 instead of the other way around.