Can someone please answer this question please show work and please answer it correctly please

answer:

Problem 3

Part A:  Distribute and Combine like terms

3(2x - 10y) + 15y - 6(3x - 8y)

6x - 30y + 15y - 18x + 48y

-12x + 33y

Part B:  Factor the expression ->  -12x + 33y

-12x + 33y

-3(4x - 11y)

Problem 4

Find if the table is proportional

In order to be proportional, the amount earned / number of lawns need to equal 15.

1/15 = 15

2/30 = 15

3/48 = 16

4/64 = 16

No, this table is not proportional because the first two times the lawn is mowed, that person earns $15, but the next two times that person earns $16.  Therefore, it is a not proportional table.

answer:

No because if it were proportional the values would be multiples of 15.

Step-by-step explanation:

Proportional relationships are constant and are multiplied by the same number always. In this case it should be 15 being continuous. While at the first   two lawns it would seem that this relationship is proportional you then get to the third lawn where it is 48 (when it should be 45 if this were proportional).

To often check proportional relationships you divide the original number (15 in this case) by the other number (other cases money was earned) and see if they equate to the amount of lawns mowed. Therefore if you did 48/15 it would NOT equal 3 (the amount of lawns mowed by then), therefore not proportional.

9 x 8 divided by (5-3)=36