Question

Lia gets paid $45 an hour plus $150 each week. She hopes to earn at least $690 this week.

Answer 1

Assuming the question is:
"How many hours does she have to work to reach her goal of $690"

That information can make the equation:
money earned in a week = 45h + 150

We then sub in $690
690 = 45h + 150
Rearrange to find h
540 = 45h
12 = h

Lia has to work 12 hours to earn at least $690

Answer 2

Answer: Hi, if the question is "how many hours she needs to work this week in order to win at least $690"

then, per week Lia wins:

$150 + $45*x,

where x is the amount of hours that she worked in the week.

then the equation we need to solve is:

$150 + $45*x = $690

$45*x = $690 - $150 = $540

x = 540/45 = 12

then she needs to work at least 12 hours this week in order to win at least $690.