The surface area of a cone with radius r units and slant height s units is shown below: surface area = 3.14(rs + r2) part a: if r = 2 units and s = 3 units, write an expression that can be used to calculate the surface area of the cone. (4 points) part b: what is the surface area of the cone? show your work. (6 points)

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.