Janet is three years older than her sister julie. janets brother is eight years younger than their sister julie. the sum of all of their ages is 55 years

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?