Can someone explain to me how to do this exercise?

Given the function f (x) = 3x-2x^2, evaluate and simplify.

1. f (f (-1))

2. f (-1+a) - f (-1)

What is the volume of a rectangular prism with the dimensions: base 7 2 cm, height 3 2 cm, and length 9 2 cm?

What is 900% of 40000

Mr. Vectadore Is buying two new cowboy hat altogether the hats cost $75.12 the second half cost twice as much as what is the price of the more expensive hat

Kwesi owns two fifths of a housing estate - His brother Kwame owns one third of the estate and theire sister Abena owns the remainder i) What fraction of the housing estate do the brothers kwame and kwesi ii) What fraction of the housing estate does

It is observed that 55.50 mL of water at 20°C completely fills a container to the brim. When the container and the water are heated to 60°C, 0.35 g of water is lost.

If f (x) = ||x||, find f (-14)

What's the reason for the fourth statement in this proof

A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h (t) = - 16t2 + 48t where t equals the time in seconds and h (x) represents the height of the ball at time t seconds.

Mark an fred had some money in the ratio 6:1. mark gave half of his money to fred. what is the ratio of the amount of money mark had left to the amount mark had let to the amount of money fred had left

The area of one face of a cube is 100 square inches. Find the cube's surface area.