- If f(x)= -x + 3, what is the equation for F1(x)? -x
O
F1(x) = 4(x - 3)
O
F1(x) = 4x + 3
O
p1(x) = 4x - 3
O
f'(x) = 4(x + 3)

The circumference of a circle is 5 pi cm. what is the area of the circle?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years