Boxes that are 12 inches tall are stacked next to boxes that are 18 inches tall what is the shortest height at which the two stacks will be the same

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!

Find the measure of angle b in the following triangle