Subtract a - 4$ from 4a + 16 and simplify your answer. the variable (a) should appear only once in your answer.

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry