POSSIBLE POINTS 6 A student was calculating area of a circle with radius 4 cm.
A = ?
4cm
A = 3.14 x 42
A = 3.14 x 8
A= 25.12 cm
Ruby was asked to review the student's work below, provide feedback and correct any mistakes.
Which response of Ruby's would be correct?

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f - g)(x). a. (f-g)(x) = x + 15 o o b. (f- g)(x) = -x - 15 o c. (f- g)(x) = 5x + 3 o d. (f- g)(x) = -x+3 submit

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12