Need answer and this a part 1 to this math hw spam

-2.85

Step-by-step explanation:

To convert 22/20 into a decimal, we must multiply it by 5 to get a denominator of 100.

5(22/20)= 110/100= 1.10

So now lets solve the equation.

-1.75-1.10 = -2.85

-1.75 -22/20

make -1.75 and -22/20 into a mixed fraction

-1 75/= -1 75/100 ( divide by 5 for the numerator and denominator)

75/5=15

100/5=20

Divide 15 and 20 again ( reducing)= 15/5=3, 20/5=4

-22/20=-2 2/20 ( divide by 2 for 2/20)= 2/2=1, 20/2=10

-1 3/4- 1 1/10

find the common denominator for the fractions which is 20

Multiply by 5 for -1 3/4

3(5)/4(5)=15/20= -1 15/20

Multiply by 2 for -1 1/10

1(2)/10(2)=-1 2/20

-1 15/20-1 2/20=-2 17/20 or in decimal : -2.85

-2 17/20 or -2.85

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

read more on -

step-by-step explanation:

a is the right answer