Okay so this is confusing its asking how much he ate of the left over pizza so 3/4 is 75% and he ate a quarter which is 25% meaning he ate 25% of the left over pizza?
Answer:

Step-by-step explanation:
As the line is perpendicular to
, we know that the slope of the line is
. As it passes through
, we know that it should be
.
Ten (10) more than (+) half (

) of a number (x) is (=) eight (8) less than (-) twice (2 x ) the number (x).

x + 10 = 2x - 8 Multiply both sides by 2
x + 20 = 4x - 16 Subtract x from both sides
20 = 3x - 16 Add 16 to both sides
36 = 3x Divide both sides by 3
12 = x
Nathan needs to save $124 - $55 = $69 to buy a skateboard.