3(r + 8) = 72. do i use the distributive property and multiply 3 by r and 8 and then continue or do i subtract 8 first? !

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

What is the distance from (–3, 1) to (–1, 5)? round your answer to the nearest hundredth. (4 points) a. 3.60 b. 4.12 c. 4.47 d. 5.66

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?