If f(x)=3x^2-4+2x find f(6)

pleas help im so confused :(

Which representation has a constant of variation of -2.5

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?