Easy peasy, this is a representation of differnce of 2 perfect squares
a^2-b^2=(a-b)(a+b)
X = the dividend
x ÷ 7 = 13
x = 13x7
x = 91
The answer is c! you just subtract: 3/2-1/2, which is 1.
Each position in the sequence has 3 choices, and there are 5 positions, so we multiply 3 by itself 5 times:
Answer:
3600 miles on 240 gal
Step-by-step explanation:
80 gal can go 1200
160 gal can go 2400
240 gal can go 3600