Answer:
95
Step-by-step explanation:
step 1
Find out the total ball bearing ordered
Multiply the number of ball bearing boxes by the number of ball bearings in each box.
[tex]17(85)=1,445\ ball\ bearings[/tex]
step 2
Find out the total springs ordered
Multiply the number of spring boxes by the number of springs in each box.
[tex]15(90)=1,350\ springs[/tex]
step 3
To find out how many more ball bearings than springs did they order, subtract the total number of springs from the total number of ball bearings
[tex]1,445-1,350=95[/tex]