What is 2times .4 tell me how you solved it sorry i forgot how to do that

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i