The third one should be -2(2x-6)=12-4x
Last one should be 2(2x-6)+4x=8x-12
Answer:
15 + 0.05x ≤ 50
Step-by-step explanation:
The cost needs to be less than or equal to 50. Thus, the equation would be
15 + 0.05x ≤ 50
Answer:
12 gallons
Step-by-step explanation:
If it takes 20 h for 5 gallons to be filled, it takes 4 h for 1 gallon to be filled. This is the ratio. You multiply 4 h by 12 to get 48 h, so you multiply 1 gallon by 12 as well. This is 12 gallons.