Heidi can type 90 words in 3 minute how many words can she type in 1 minute

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)