If a and b are independent events, then it must be true that p(a|b)=p(a). true or false

What is sin 7x/4 ? i need on this urgent trig

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4