Quantas palavras com 2 letras distintas podemos formar com as 7 primeiras letras do alfabeto

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *