Which situation could be described by the expression d+1/2 A. Lela walked d miles yesterday, and 1/2 mile today.
B. Lela walked d miles yesterday, and 1/2 miles fewer today.
C. Lela walked 1/2 mile yesterday, and d miles fewer today.
D. Lela walked1/2 mile yesterday, and d times as far today.

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.