math
posted by major on .
A rectangle has a perimeter of 24 units. If the width is 4 units, which of the following is the length?
A. 6 units
B. 8 units
C. 10 units
D. 16 units

P = 2L + 2W
24 = 2L + 2(4)
24 = 2L + 8
24  8 = 2L
16 = 2L
8 = L