Xx classify each number as rational or irrational: 1. 2√9 ∙ √4: ? 2. √3 ∙ √16: ? 3. √5 ∙ √5: ? 4. 7√3 ∙ √3: ?

For how answer my question this will be the last question can you answer in math subject

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

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? *