If tan x = 1.98 and sin x = .89, what is cos x

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?