Perform the operation. Write the answer in standard form.

(9 + 3i) - (-2 - 7i)

Tim is choosing between two cell phone plans that offer the same amount of free minutes. Cingular's plan charges $39.99 per minute with additional minutes costing $0.45. Verizon's plan costs $44.99 with additional minutes at $0.40.

The sales tax on a $56.00 is 48. that rate, what would be the sales tax on 60.00 worth -

What are the measures of Q and M for parallelogram. (32x-18) °M (25x+10) °

An ice cream truck driver used the equation y = kx to show how much money he made selling 7 ice cream bars. He determined he'd make $19.46. How much did he make per bar sold?

A parking garage charges $2.88 for the first hour and $0.50 for each additional hour or part of an hour. What is the maximum length of time tom can park in the garage if he wishes to pay no more than $6.88 ?

Write the quadratic equation whose roots are - 4 and 1, and whose leading coefficient is 4

Millie went shopping and took £60 to spend. she spent 1/2 of her money on a pair of shoes, she then spent 2/3 of what she had left on a pair of jeans. how much money did she have left at the end of her shopping trip?

Circle two addends to add first. write the sum 7,3,3

TK-119 has a 20% salt solution in it and contains 27,000 gallons. How many gallons of the solution are salt?

What is the square root of 517? And how do I show my work.