The graph of which function is decreasing over the interval (–4, ∞)? f(x) = (x + 4)2 + 4
f(x) = –(x + 4)2 + 4
f(x) = (x – 4)2 – 4
f(x) = –(x – 4)2 – 4

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?