Two angles are vertical
Hypothesis is after “if” but before “then”
Answer: Option D
D.
; 
Step-by-step explanation:
We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.
We also know that a total of $ 880 was paid last month
To write an equation that represents this situation, let us call "d" the number of days that Barry attends school
So the cost was:

Now we solve the equation for the variable d



Therefore answer is the option D
$252/$28=9 lawns. $252 is the total money they earned, so divide it by the amount of money they charge per lawn.
Answer:
(1 1), (1 2), (1 3), (2 2), (2 3) (3 3)
Step-by-step explanation:
discrete mathematics