Using the given conversion table, match the distances in yards, inches, or miles to their equivalent distances in feet. Ratio Conversion Table

mile : yard 1 : 1,760
yard : feet 1 : 3
feet : inch 1 : 12

Tiles

1,790 yards

66 feet

15,840 feet

300 yards

20 feet

240 inches

22 yards

5,370 feet

900 feet

just get this app called photo math it should be able to do those

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal