HELP ME ASAP NO FILES! AND WILL GIVE BRAINLIEST FOR FIRST CORRECT ANSWER!!

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

Assemble the proof by dragging tiles to the statements and reasons column

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.