Exhibit.

When each plant had been growing for 6 weeks, how much TALLER, in centimeters, was the plant on which fertilizer A had been used than the one using fertilizer B?

Robert's car averages 32 miles to the gallon in highway driving. Approximately how many gallons of gas should he expect to use for a trip of 220 miles?

Ben has a net (after-tax) monthly income of $1200. He has budgeted part of that money for the expenses listed in the table below.

Approximately what percent of Ben's net monthly income has he budgeted for expenses related to his car?

Two groups collected aluminum cans for a recycling drive. The first group had 40 members, and each collected 18 cans. The second group had half as many members, but each collected twice as many cans as any member of the first group had.
What was the total number of cans collected by the two groups?

Exhibit.

What was the approximate height of the tree, in meters, when it was transplanted?