Give the answer in a + bi form. (-7 + 6i) + (6 - 8i)

Joelle would like to tip her hairdresser 20%. If her haircut costs $38.00, which expression should she use to find the tip amount?

Solve the problem using the formula below: Interest = 2yc / m (n+1) Given a note for $1,000, with 24 equal monthly payments, and a 7.5% true annual interest rate is charged. What is the principal plus interest payment?

Joanna has 45 postcards in her postcard collection, which is 180% of the number of postcards Kyle has. How many postcards does kyle have?

A student is attempting to solve a multi-step equation. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work? Given the equation 35x - 10 = 5, I must solve for x.

Determine whether the underlined numerical value is a parameter or a statistic. explain your reasoning. upper a survey of 42 out of hundreds in a dining hall showed that modifying 40.5 % with underline enjoyed their meal.

Two angles are supplementary if their sum is 180°. One angle measures five times the measure of a smaller angle. If x represents the measure of the smaller angle and these two angles are supplementary, find the measure of each angle.

Find the domain of the function (f/g) (x) where f (x) = √x+1, g (x) = √x-9

The time required to complete a job varies inversely with the number of people working if it took 5 painters 3 days to paint a house, how long would it take 1 painter?

A rectangular swimming pool has an area of (70x+10) square feet. Find possible dimensions of the pool.

If the store purchases a product at a wholesale cost of $1.65, and it is sold at $2.20, what is the gross profit percentage? (formula: gross profit percentage = [ (retail - cost) divided by retail] x 100)