Aline on a graph shows a proportional relationship between the weight, x, in pounds of apples purchased and the total cost y. two points on the graph are located at (3, 3.21)(3, 3.21) and (5, 5.35)(5, 5.35).

what is the unit rate for the cost of the apples per pound?

a, $0.83 per lb

b, $1.07 per lb

c, $1.67 per lb

d, $1.76 per lb

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Given that abcd is a rhombus, what is the value of x?

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.