An app takes 2.5 seconds to download 15 MB. How long does it take to download 405 MB?
answer pls

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition