Me with the fraction problems . it's linear inequalities.

i need with 3, 7, 8, and 12

3.

Multiply both sides by 4:

Subtract and 1 from both sides:

7.

Multiply both sides by 6; this choice is motivated by the fact that and . In other words, 6 is the least common multiple of 3 and 2, which allows us to eliminate the denominators of the fractions in this inequality.

Subtract and 18 from both sides:

8. Since these are all linear inequalities, I think this is supposed to read

Multiply both sides by 2:

Subtract and -2 from both sides:

Divide both sides by 5:

12.

12 is the least common multiple of 4 and 3; distributing it to both terms on the left gives

so we have

Subtract 3 from both sides:

Divide both sides by 4:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.