Match each unit rate to its ratio ¾ gallon : ½ minute ⅔ gallon per minute

1½ gallons : ½ minute 1½ gallons per minute

3 gallons : 4½ minutes 3 gallons per minute

3 callons : ⅓ minute 9 gallons per minute​

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."

if i knew id you bro,, my bad