A175-pound cyclist burns 672 calories for every hour of cycling. round the number of calories to the nearest hundred and then estimate. about how many calories would the cyclist burn in 10 hours? a. 70 b. 680 c. 6,700 d. 7,000

Can someone me i’m confused. will give brainliest and a whole bunch of points

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.