Express in an inequality that -8.5c is warmer than -15c

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine,t, the number lf tokens jason bought

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if