If cos theta = 0.8, find 1 / sin (pi/2 - theta)

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

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?