the amount of sales tax on a clothing purchase is directly proportional to the purchase price of the clothing. the sale tax on a $60 sweater is $4.20. determine the constant variation (sales tax percentage).

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  7%

Step-by-step explanation:

The tax rate is the ratio of tax to pre-tax cost:

  $4.20/$60.00 = 0.07 = 7%

The constant of variation (tax rate) is 7%.

wait this depends wether emily and zach how they are thinking.

yes they are the same.

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .