(HELP ASAP)Use the graph above to identify the following using interval notation: a. Increasing interval(s)
b. Decreasing interval(s)
c. Positive interval(s)
d. Negative interval(s)
e. X intercept(s)
f. Y intercept (s)

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Can someone pls ! pls answer all. no explanation needed..

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4