Help quick please

Compare √7 and √12 plotted on the number line. What is the approximate
values?

√12 is _ greater than √7

The price of a box of 15 cloud markers is $12.70. the price of a box of 42 cloud markers is $31.60. all prices are without tax, and the price of the packaging is the same for any size. how much would 50 cloud markers in a box cost? write an equation which will tell the price p for the number n markers in the box.