Substitute in the value a=4 and simplify:

5a + 9 + 10a

69

Step-by-step explanation:

5(4)+9+10(4)=20+9+40=20+40+9=60+9=69

69

Step-by-step explanation:

5a + 9 + 10a

15a + 9

15(4) + 9

60 + 9

69

Hope this helps. Pls give brainliest.

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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