291-186=105 (total earned through wages)
105/5=21
Therefore she worked 21 hours
5 units is L'L ( I took the quiz and got it right)
2a+1b=27.50
4a+2b=59.50
Multiply first equation by -4 and the second by 2 so you can drop off the a values then add the equations together. Then solve for b. You should get b=6.
Then plug b into one of the original equations and solve for a and you should get 10.75
So a plate of spaghetti is $10.75 and a salad is $6.
<em><u>Please mark brainliest!</u></em>
No sé qué forma quieres que lo contestes pero es 278235/133 !
