Help help help help help help

Step-by-step explanation:

6---»

(4a²-6ab+9b²) (2a+3b) ; a=2, b=1

(4a²-6ab+9b²) (2a+3b)

(4×2×2-6×2×1+9×1×2) (2×2+3×1)

(16-12+18) (12)

22×12

264

______________________________________

7---»

9x(6x-5y)-12x²(6x-5y)

(6x-5y) (9x-12x²)

(6x-5y) (3x) (3-4x)

3x (6x-5y) (3-4x)

______________________________________

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94