12. The graph shows that the cost of a river rafting trip has been rising steadily since 1990, a.
Find the y-intercept. (Use the given point. Do not estimate)

b. Use the two identified points to calculate the slope.

c. What is the equation of this line, in slope-intercept form?

d. Use substitution to predict the cost of the river rafting trip in 2015

Asap! i'm not good math and i'm lost.

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm

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?