Answer:
7x-3<30
Step-by-step explanation:
7 times a number = 7x
is decreased by 3 = -3
the result is less than 30 = <30
Answer:
15in
Step-by-step explanation:
The formula for finding the area of a rectangle is A=lw.
A=lw
A=5*3
A=15
A = πr2 and since d=2, r=1.
so A = 3.14*1^2 = 3.14
Answer:
Step-by-step explanation:
(a) Given
Sam charge $5 for each dog for a thirty minute walk
For an hour which is double the thirty minutes, it must be double of the same charge.
(b)Given
With $20, Christie sells 100 cups of lemonade with a quarter per cup charge
For 100 cup, she generate a revenue of
So, she earns that is , her profit is