Find the length of the legs of a right triangle whose hypotenuse is 169 cm and whose area is 7,140 cm?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)