Question

A parking garage near Jeanette's house is 4 stories tall. There are 30 open parking spots on the first level. There are 4 more open parking spots on the second level than on the first level, and there are 5 more open parking spots on the third level than on the second level. There are 25 open parking spots on the fourth level. How many open parking spots are there in all?

-Proto signing off
30 + (30+4) + (30+4+5) + 25 = ___

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