Rebecca earned a total of $8 by selling 2 cups of lemonade. Later on, she earned a total of $16
selling 4 cups of lemonade. How much does one
cup of lemonade cost?

In what form is the following linear equation written y=9x+2

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?