write one-half the difference of a number and six is greater than or equal to fifteen less than twice the number as an algebraic expression

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 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)