13. In 1987. 34.7 million households owned a dog, and 27.7 million 14.1
owned a cat. Since then, dog ownership has decreased by 0.025 0
million households per year, and cat ownership has increased by i
0.375 million households per year. How many years, y, will it b
take for them to be equal?

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

the correct answers i think are b. and d.

give me brainliest if it is correct!