Simplify the expression. 3 square root 5/64

It costs 4.25 for 1 pound of roast beef. how much will it cost to purchase 2.5 pounds of roast beef? round to nearest cent

2-3 6. use your equation to find how high tyler will have to climb to scale the peak. (4 points: 2 points for correctly substituting values, 2 points for the correct height)

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?