Can someone me solve 3 and 4! ? im stuck. their short too(:

How many solutions does the nonlinear system of equations graphed below have?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

If you draw a card with a value of three or less from a standard deck of cards, i will pay you $43. if not, you pay me $11. (aces are considered the highest card in the deck.) step 1 of 2 : find the expected value of the proposition. round your answer to two decimal places. losses must be expressed as negative values.