Aperson 66 inches tall is standing 15 feet away from a streetlight. if the person casts a shadow 84 inches long, how tall is the streetlight?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Secant be and cf intersect at point d inside a what is the measure of cde

Amanufacturer knows that their items have a normally distributed lifespan, with a mean if 9.1 years, and standard deviation of 2.9 years. if you randomly purchase one item, what is the probability it will last longer than 10 years?