John is asked to roll a fair number cube, numbered from 1 to 6, and toss a balanced quarter simultaneously. What is the probability that he will roll a 2 and the quarter will come up tails?

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0