Answer
8) Option B is correct.
132 dollars will board the dog for 6 days.
9) Option D is correct.
t < 25
Explanation
8) Salvatore wants to know how many days he can board his dog for considering he has a do-boarding budget of $132 and the daily rate for dog-boarding is $22.
Let the number of days that $132 can board a dog for, be x.
Since boarding a dog for 1 day costs $22
$22 = 1 day of boarding
$132 = x days of boarding
We can form a mathematical relationship simply by cross multiplying
22 × x = 132 × 1
22x = 132
Divide both sides by 22
(22x/22) = (132/22)
x = 6 days
9) We are told that Karen and Hank both work at a car wash. Hank takes 25 minutes to wash and wax each car and Karo washes and waxes faster than Hank. If t represents the time that it takes Karo to wash and wax each car, we are asked to relate t to the time it takes Hank to wash and wax each car (25 minutes).
Note that we are told that Karo washes and waxes each car faster than Hank, this means that Karo spends a smaller time on each car than Hank (since Karo is faster).
This means that the time it takes Karo to wash and wax each car (t minutes) is lesser than the time it takes Hank to wash and wax each car (25 minutes).
In mathematical terms,
t < 25
Option D is correct!
Hope this Helps!!!