I need help with these two problems please.

2. 4

3. 10

Step-by-step explanation:

2. (3 x 5² ÷ 15) - (5 - 2²)

    3 x 25 ÷ 15

    75 ÷ 15

       5 - (5 - 2²)

      5 - (5 - 4)

      5 - 1

       [4]

3. (22 ÷ 2 - 2 x 5)² + (4 - 6 ÷ 6)²

     11 - 2 x 5

     11 - 10

        (1)²

         1 + (4 - 6 ÷ 6)²

         1 + (4 - 1)²

         1 + 3²

         1 + 9

          [10]

dwe

step-by-step explanation:

ewd

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: