The table shows the age of a painting (x) in years, and its estimated dollar value (). Х50 54 62 65 68
у1,200 1,500 2,400 3,200 4,100
Σy=12,400
x^2 2,500 2,916 3,844 4,225 4,624
Ex2=18,109
ху60,000 81,000 148,800 208,000 278,800
Σxy=776,600
Ex=299
Which regression equation correctly models the data?
O y = 41.47x + 0.09
O y = 41.47x + 1,279.93
O y = 153.32x – 6,688.54
O y = 153.32x - 6,325.76

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

its 69.420

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: