Solve equation

18-4v=42

(I keep getting 15, which is incorrect)

A 60 percent increase followed by a 40 percent decrease

How do you factor n^3+1000

A boat took 5 h to travel 60 km up a river, against the current. The return trip took 3 h. Find the speed of the boat in still water and the speed of the current.

Find the area of a trapezoid with bases that measure 9.2 cm and 7.7 cm, and height 6.8 cm. A. 114.92 cm2 B. 481.7 cm2 C. 57.46 cm2 D. 28.73 cm2

What is the surface area of this dude that has 2in, 9in, and 6in

A carpenter has several boards of equal length, He cuts 3/5 of of each board. After cutting the boards the carpenter notices that he has enough left over to make up the same length as 4 of the original boards.

The measure of an angle is 43.5 degrees. What is the complementary angle?

Describe the slopes of the parallel lines. Then, give an example of two linear equations that are parallel

Suppose C and D represent two different school populations where C > D and C and D must be greater than 0. Which of the following expressions is the largest? Explain why. Show all work necessary. A: (C + D) 2 B: 2 (C + D) C: C2 + D2 D: C2 - D2

One serving of granola provides 4% of the protein you need daily. You must get the remaining other 48 grams from other sources. How many grams of protein do you need daily?