Apolygon has the following coordinates: a(6,-7), b(1,-7), c(1,-4), d(3,-2), e(7,-2), f(7,-4). find the length of ef.

Guests at an amusement park must be at least 54 inches tall to be able to ride the roller coaster. which graph represents the set of heights that satisfy this requirement?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?