The first one is B hope this helps
(20)(7) = 140 hours per week
(20)(365) = 7300 hours per year
Answer:
Plot
and 
Step-by-step explanation:
Given:

Solving for the positive part of the equation:

Solving for the negative part of the equation:

Answer:
1242 6th graders went on the trip.
Step-by-step explanation:
From the information given, you know that the theater has 2760 seats and that the students filled 45% of the seats, so to find the quantity of 6th graders that went on the trip, you have to calculate 45% of 2760:
2760*45%=1242
According to this, the answer is that 1242 6th graders went on the trip.