The area of a scale model of the Central Park ice-skating rink has an area of 16 square inches. The area of the actual ice skating rink in Central Park has an area of 400 square inches. What scale factor was applied to the scale model to get to the actual rink?

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?