The figure has 60 edges and 30 vertices

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

What is the first step of an indirect proof of a number that is divisible by two

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.