Very confused & don't understand, if anyone can explain I appreciate it!

7x - (3x + 5) - 8 = 1/2 (8x + 20) - 7x + 5

A rectangle has lenght 3 feet and width 1/4 foot. What is the area of the rectangle

James has a lot of games. Samuel, his friend, has 4 times as many games as James. Write an algebraic expression to represent how many games James has and how many games Samuel has in terms of g.

What is the frequency of a wave if the wavelength is 0.65m and the wave speed is 343.00 m/s? f = v

What is the answer to 0.08 is 10 times as great as?

Solve: 2x+4 * + 5 * + 6 * = 12

Evaluate the function f (x) = x 2 + 1 for f (2)

Factor k 2 + 8k + 15. (k + 1) (k + 15) (k + 8) (k + 7) (k + 3) (k + 5) Find the quotient. (6x 2 + 23x + 20) : (5 + 2x) 3x - 4 3x + 4 3x + 19 Select the correct difference.

If the lake is 60 miles away and rene is driving 40 miles per hour how long does it take him to get to the lake

Which expression has a value of 15, using only four 4s and any of the following: +, -, ·, :, exponents, and/or parentheses? A. 44 - (4 : 4) B. (4 · 4) - (4 + 4) C. (4 · 4) - (4 : 4) D. (4 + 4 + 4) : 4

Last year there were 15 porcelain dolls in Lanny's collection, after trading for a rare doll, she now has 12 dolls. What is the percent decrease of her collection?