Kelly is knitting a scarf for her brother. It took her hour to knit foot of the scarf. How fast is Kelly's knitting speed, in feet per hour?

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

mia khalifa

step-by-step explanation:

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)