144^2 - 121^2=
a. 23
b. (144+121)(144-121)
c. (144+121)(144+121)
d. (23)^2
e. (144+121)^2

Step-by-step explanation:

Use a² - b² = (a + b)(a - b)

144² - 121² = (144 + 121)(144 - 121)

Step-by-step explanation:

Use a² - b² = (a + b)(a - b)

144² - 121² = (144 + 121)(144 - 121)

answer: 230 miles ( vote ! )

step-by-step explanation:

180.39 minus 17.99 equals 162.4

then divide 162.4 by .80 to get 230

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right