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 mathematical sign for "less than"?

Yesterday 1743 people visited the fair today there are 576 more people at the fair than yesterday

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2+1 inches. She plans to make a similar pillow, including the ribbon, whose side length is 4x-7 inches.

Using the data below, calculate the absolute error for the 3rd week. use the 2 period moving average to create the forecast

Pablo generates the function f (x) = 3/2 {5/2} ^ x-1 to determine the xth number in a sequence.

Ms Cooke bought 9/10 of a cake. She ate 2/5 of her cake. How much cake left.

The average of 4 number is 85. if three of the numbers are 76, 78, and 81 what is the fourth number.

Aiden and Ryan are collecting clothes for a shelter. Ryan collected 1/4 as many clothes as Aiden did. If Aiden collected 12 bags of clothes, which expression below could you use to find out how many bags of clothes Ryan collected? a. 12 : 1/4 b.

29, 19, and 29 triangle as acute, right, or obtuse.

Dean ran 1 2/5 miles. Sheila ran three times as far as Dean. How far did Sheila run?