Find the missing number in the following series: 4 ? 17 51 56 168 i know the answer is 12 (someone else said) but i don't know why. can anyone explain the pattern?

Idon’t understand! 15 points for whoever answers correctly! write an equation for the lion, and one for the zebra. then, plot the points on an x,y chart going up to 8. plot both points on the

If you answer right ill give brainliest, : )

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.