Thomas had three different types of coins in his pocket, and their total value was $2.72. he had twice as many pennies as quarters and one less dime than the number of pennies. how many quarters did he have?

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?

Find the area of the regular hexagon if a side is 20 cm.