Simplify the following expression into the form a+bi where a and b are rational numbers

(3+7i) (-2-2i) - 4i (5-9i)

Write 15% as a rate per 100

what is the answer to (-3) + (+4) =

What is the difference between a full warranty and a limited warranty? a. A full warranty is a guarantee to replace a faulty product, while a limited warranty is a guarantee to repair a faulty product. b.

Two sides of a triangle have the same length. the third side measures 7 m less than twice the common length. the perimeter of the triangle is 13 m. what are the lengths of the three sides?

A doctor's prescription calls for a daily intake containing 50 mg of vitamin C and 10 mg of vitamin D. Your pharmacy stocks two compounds that can be used: one contains 80% vitamin C and 10% vitamin D, the other 40% vitamin C and 20% vitamin D.

Solve for f -f+2+4f=8-3f

A rectangle prism has a volume of 360 in cubed. If the height measures 4 in., which base measurements could the prism have?

What is 0.0100? A. 0.01 B. 0.1 C. 1 D. 10

If a shape has a scale factor of 1/2 applied to it, then to get the new area, I should multiply the old area by

Fiona needs $62 to go on a field trip. She has saved $10.50. She earns $6.50 per hour cleaning her neighbor's garden, and she earns $5.25 per hour selling cakes at a store.