Tanya has 12 coins in half-dollars and quarters. Their total value is $4.75. How many coins are there of each type?

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?