If w=5.5 (20+d), where w = weight in pounds and d = the number of inches one's height exceeds 5 feet. By this formula, the normal weight of an adult who is 5'6 tall is ___ pounds.

134

140.25

140.8

143

To find the normal weight of an adult who is 5'6" tall using the formula

w=5.5(20+d),

we need to determine the value of d, which represents the number of inches one's height exceeds 5 feet.

Since 5'6" is 6 inches more than 5 feet,

d=6.

Substitute

d=6 into the formula:

w=5.5(20+6)

w=5.5(26)

w=143

Therefore, the normal weight of an adult who is 5'6" tall is 143 pounds.