Answer:
One ruler cost 0.60
Step-by-step explanation:
7.50(1) + 1.80(3) + 4x = 20 - 4.70
7.50 + 5.40 + 4x = 15.30
12.90 + 4x = 15.30
4x = 2.40
x = 0.6
2/3 is the answer.
Its divided by 4...
Hope it helps!!!
x - m/q = t
x = m/q + t is the answer
5:3