i really need it
(physical science)
use newton’s law to explain why, when a 100 kg astronaut throws a 9kg bowling ball forward in space, she moved backward but slower

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?