Which description best describes all parallelograms? a. only one pair of sides is parallel. b. there are 4 right angles. c. there are two pairs of equal and parallel sides.

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Me! i will mark brainliest! i don't get polynomials and all that other stuff. so this question is really hard. multiply and simplify.(x - 4) (x^2 – 5x – 6)show your

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.