I need help with this answer!!
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Answer:
7a +19.5 = 112.25
Step-by-step explanation:
A suitable equation is ...
weight of alternators + weight of wheel = total weight
Since one alternator weighs "a", seven of them weigh 7a. Filling in the given values, this equation is ...
7a + 19.5 = 112.25 . . . . . matches choice D