If 45% of a number is 99 and 35% of the same number is 77, find 80% of that number.

176 = 80%               Extra: If you need 100% its, 220

Step-by-step explanation:

99+ 77 is 176

45% + 35% = 80%

answer: plz put a pic in so i can answer it

step-by-step explanation:

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: