The sum of the measures of angle a and angle b equal 90 degrees. what is cos b

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

If you invest 1,500 today in a bank that gives you a 5 percent annual interest rate, which of these items can you buy in two years? a. electronics worth $1,650 b.fitness equipment worth $1,700 c.a holiday package worth $2,000

Simplify the expression below -3(10x+4y)+6(6x-2y)