Needs 2 b ! i'm givin 65 ! explain ! find both unit rates. 4543.08 km in 52.4 h a. 4543.08 km 52.4 h and h km b. 4543.08 h 52.4 km and km h c. 86.7 h 0.012 km and km h d. 86.7 km 0.012 h and about h km

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?