Answer:
7.5
Step-by-step explanation:
7.2 + 8.5 + 7.0 + 8.1 + 6.7 = 37.5
37.5÷5 = 7.5
90 = 2 · 3 · 3 · 5 = 2 · 3² · 5¹
If n has the form

and

is an integer, then greatest possible value of n = 3² · 5¹ =
45
10+12p is the answer to that IXL problem
I'm going to say 3 1\2. Let me know when you get the answer.
{4x - 5y = 17
{x - 5y = 8
{x = 5y + 8
{4(5y + 8) - 5y = 17
{x = 5y + 8
{20y + 32 - 5y = 17 | - 32
{x = 5y + 8
{15y = -15 | : 15
{y = -1
{x = 5 * (-1) + 8
{x = 3
{y = -1