The club received good prices for the ingredients from the local stores, so each serving of nachos costs them only $0.50. the members plan to sell each serving of nachos for $1.25. what percent markup is in this price?

150% is the percent markup of the price based on the cost.

Price    :  1.25
Cost     :  0.50
Mark up: Price - Cost = 1.25 - 0.50 = 0.75

0.75 / 0.50 = 1.50 * 100% = 150%

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8