What is the value of (gof)(4)

f(x)=3-x; g(x)=4x+1

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.