To enroll in lessons to learn about pottery wheel throwing, you must pay an enrollment of $20 for
each lesson. The pottery studio also charges you
$2.99 per pound for the amount of clay used.
Write an expression for the total cost of a per-
son using cpounds of clay during a lesson. Use
the expression to calculate the cost of a lesson
where Sam uses 3.5 pounds of clay.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.