Mary has an equal number of dimes and quarters. If she has $2.10 in all, how many coins of each does she have?

A plumber charges $75 per hour and spends $30 a day on gasoline. Write an algebraic expression to represent his earnings for one day. Lets represent the number of hours the electrician works in one day.

Use scientific notation to express the diameter of a human hair that measures 0.0018 centimeters.

What does and i on a calculator mean?

Jewels has $6.75 to nide the ferry around Connecticut. It will cost her $0.45 every time she rides. Identify the dependent variable and independent variable in this scenario A.

Rita makes sidewalk chalk two days a week each of those days she spent one one fourth hour making the chalk how much times does rita spend making sidewalk chalk in 3 weeks

If two students from the highschool are chosen at random one after the other to represent the school at a leadership conference what is the probability that the second student chosen is a sophmore girl if the first student chosen was a senior boy

Mai is riding her bicycle she take 6 hours to ride 38.4 kilometers. What is her speed?

I got. 5 It says to simplify your answer. Using interference or simplified fraction. And to find value of variable x

What is the sum of 1,605 + 1,219 + 1,119 + 1,153?

A stack of round crackers are in the shape of an oblique cylinder. The diameter of each cracker is 6 centimeters and the height of each cracker is 0.4 centimeters. There are 26 crackers in the stack.