What is the different of the complex number? (3+7i) - (-4-2i)

Two construction workers, Tyrone and Diego, are standing 15 yards apart, looking up at a piano hanging between the two men from a crane.

A coin is flipped 10 times where each flip comes up either heads or tails. How many possible outcomes a) are there in total? b) contain exactly two heads? c) contain at most three tails?

Find the radius of a circle in which the central angle of (pie / 4) radian determines a sector with an area of 86m^2 A-14.80m B-20.92m C-68.44 m D - 10.46m

Which equation could represent "the total cost of bananas at the store that sell for $0.89 per pound" where b is the number of pounds of bananas and C is the total cost? A. C (b) = 0.89b B. C (b) = 0.89 + b C. C (0.89) = b D. C (b) = 0.89 - b

What is two fifths if 35 dollars and 10 cents?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.