Why does 30 + (-8) + (-6) equal 16? I'm so confused on this one

Hey what's this math problem?

Without graphing, determine whether the function y = (5.2) ^x represents exponential growth or exponential decay.

A wireless phone company determines that 12 out of every 350 Model A phones are returned because of a defective screen. If the company just purchased 2,000 more units, about how many Model A phones should they expect to be returned? A. 86 B. 68 C.

Iago bought 2 cases of soda with 24 cans of soda in each case. on friday, he drank 3 sodas. on saturday, he had friends over and they drank all but 5 soda's. how many sodas did iago and his friends drink on saturday

Completa la tabla 2. observa el ejempol ... por favor rapido

0.59+0.33t=3.68t-0.75

The area of a parallelogram with a side of 5.6 in is equal to the area of a rectangle with sides 7 in and 8 in. Find the altitude to the given side in the parallelogram

A boy is flying two kites at the same time. He has 360 ft of line out to one kite and 410 ft to the other. He estimates the angle between the two lines to be 30 degrees. Approximate the distance between the kites.

Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. Each tube of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy.

What is 2/9+1/3 = i need it for for my homework