A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
Answer:
6.9 miles.
Step-by-step explanation:
2.3mph x 3h=6.9m
She will have $500 in 5 days because when she takes out the 20 every week she will have had $100 so to make $500 she will have to have made 5 $100
3t shirts cost $18
1 shirt will cost 18/3t = 6/t
7t shirts will then cost = (6/t)*7t = 42
7t shirts will cost $42.00
