What is the sum of 12 - 5i and - 3 + 4i? a.) - 16 + 63i b.) 9 - i c.) 9 - 9i d.) 15 - 9i

nate runs 8 miles each week write an expression for the number of miles he runs in 'n' weeks find the number of miles neutrons in five weeks

A pyramid-shaped building is 63 ft tall with a square base that is 81 ft on each side. What is the volume of the building in cubic feet? In cubic yards?

Store x sells 4 cans for $2.48 Store y sells 5 cans for $3.00 Store z sells. 59 per can Which store offers the best deal and explain your reasoning

The value of a bike depreciates by 55% per year. work out the current value of a bike bought 2 years ago for £1300.

Polynomial division (-12m^2-49mn-44n^2) / (-3m-4n)

A local technical school has 856 students. They expect 700 guests for a special speaker. The custodian has set up 1,500 chairs. How many more chairs are needed if all visitors and students are to have seats?

How to split numbers to multiply

Compare - 6 broken bulbs out of 20 or 7 broken bulbs out of 30

Each of the 10 players on the basketball team shot 100 free throws, and the average number of baskets made was 75. When the highest and lowest scores were eliminated, the average of baskets for the remaining 8 players was 79.

Use elimination to solve 2x+3y=4 4x+6y=-5