Solve the equation 3(2×+2)=3×-15

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

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?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .