D4) 9=2.25x

Question

I wasn't taught decimals in pre-algebra yet. I know decimals, but just not in these type of problems

Answer 1

9=2.25x
Divide 9 by 2.25

9/2.25 = 4

x = 4

Answer 2

if ice cream cones cost $2.25 , how many could you buy with $9?