The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. one day, she counts 21 seats and 30 wheels. which equation in slope-intercept form shows that x bicycles and y unicycles together have a total of 30 wheels?

a. y = -2x - 30
b. y = -2x + 30
c. y = 2x + 30
d. y = 2x - 30

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

What is perpendicular to y=-1/2x+11

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay