4(5x + 3) - 4x
4*5x = 20x
4 * 3 = 12
20x and 4x are like terms,so 20x - 4x=16x
12 doesn’t have anything to go with,so it just stays
16x + 12 (B is the correct answer)
Answer: Ken Block ??
Step-by-step explanation:
Answer:
Step-by-step explanation:
The discount is $10.
Subtract it from $50 to get $40 as your sale price!
Evaluate the derivative of f(x) at x = 1. I'll use the limit definition:

Then using the point-slope formula, the equation of the tangent line to f(x) at the point (1, 5) is
y - 5 = 9 (x - 1)
y = 9x - 4