Icould really use your for problem #1

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false