390625
^if that’s what you meant in the picture cause your question was confusing
3x+5x/4≤34
leat common multiple=4
12x+5x≤136
17x≤136
x≤136/17
x≤8
Answer: x≤8 or (-∞,8]
Your answer should be 157.5 Inches
Top one is x+3, bottom one is 5
Sounds like 18 servings to me.
6 quarters go into 1.5
6 x 3 is 18 so 18 servings.