Choose all that state the correct unit rate for each situation. 100 points asap k12

ryan earns $45 for 5 hours of work. the unit rate is $9 for 1 hour.
jenna can drive her car 110 miles on 5 gallons of gasoline. the unit rate is 22 miles per gallon.
the admission to a water park is $72 for 4 people. the unit rate is $17 for each person. right
ella is making cookies. for every 2 cups of sugar, she uses 5 cups of flour. the unit rate is 2/5 cup of flour per 1 cup of sugar
claire saves $320 in 16 weeks. the unit rate is $20 per week.

Please see the answer below:

Step-by-step explanation:

Ryan earns $45 for 5 hours of work. The unit rate is $9 for 1 hour.

Jenna can drive her car 110 miles on 5 gallons of gasoline. The unit rate is 22 miles per gallon.

Claire saves $320 in 16 weeks. The unit rate is $20 per week.

% increase in price of gas = [(New Price - Original Price) / Original Price] x 100

% increase in price of gas = [($2.48 - $2.18) / $2.18] x 100

% increase in price of gas = [$0.3 / $2.18] x 100

% increase in price of gas = 13.76%

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use mnemonics and other tricks.

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note: the best i know.

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.