Question

I don't know why they got 80, can someone please explain?

Answer 1

Because 65 + 4 isn't 80.

Answer 2

you are correct it should be 69

Answer 3

Oh, so I'm not wrong?

Answer 4

I was just hella confused.

Answer 5

It was a typo by them but the solution is still correct.

Answer 6

Okay, thank you. I'll tell my teacher, hehehe.

Answer 7

tell ur teacher the solution doesn't work when u plug into the equation \[\huge\rm 10(1) -2(-2.5)\cancel{=}4\]