Iran 13 miles in 2 1/4 hours. what was my average speed ?

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?