Answer:
NL = 73.5
Step-by-step explanation:
ratio and proportion to solve for DA
22 = 24
DA 18
DA(24) = 18(22)
DA = 18(22)
24
DA = 16.5
ratio and proportion to solve for NA
NA = 42
16.5 22
NA(22) = 16.5(42)
NA = 16.5(42)
22
NA = 31.5
therefore,
NL = NA + 42
NL = 31.5 + 42
NL = 73.5
