10(3.25-1.25)+3/4 help please brain brain no work

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

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)