Please help me solve this

Step-by-step explanation:

Sean buys some T-shirts for $12 each and the same number of belts for $7.50 each. Write an expression in the simplest form that represents the total amount.

So n represents the same number for t-shirts and belts.

Therefore n x 12.50 + n x 7.50 OR n(12.50+7.50)

The problem the student made was that they multiplied 12 times n plus 7.50. They forgot to multiply n times 7.50.

An expression that represents the total amount spent is 12n + 7.50n

Hope this helps!

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.