Which terms in the expression are like?

1/2a + (-3a) - 3b-0.7a

A:1/2a

B:-3a

C:3b

D: - 0.7a

The graph represents the function where electricity usage in kilowatts per hour of a clock radio varies directly with the number of days it is plugged into the wall current. which is a reasonable estimate of the constant of variation?

An empty bathtub is filled with water at a rate of 2.5 liters per minute. How long will it take to fill the bathtub with 30 liters of water?

Two lines are perpendicular. The equation of the first line is y = 4x + 1. Which of the following cannot be the equation of the second line?

A bakery uses 25 cups of flour to make 8 loaves of bread. what is true about the number of cups of flour in each loaf?

A city has a population of 350,000 people. Suppose that each year the population grows by 5.5%. What will the population be after 11 years?

dean pours 3 gallons of paint equally into 5 cans. how many gallons of paint will there be in each can

Suppose N coins lie heads up on a table. In one turn, you can turn over any (N-1) coins. Is it possible that N coins could lay tails up in any number of turns, if a N=15?

Mikayla asked 10 of her friends how many hours of TV they watch in a week. Three of her friends said 8 hours, two of her friends said 9 hours, two of her friends said 11 hours, one of her friends said 12 hours, and two of her friends said 14 hours.

In 2015, the population of a small town in florida is 95. of the population increases 15% per year, approximately what will the population be in 2023

A total of 4 buses carrying 148 students from the same school arrive at a football stadium. The buses carry, respectively, 40, 33, 25, and 50 students. One of the students is randomly selected.