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

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.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

there are no choices to this, can you give us some choices so that i can answer it

step-by-step explanation: