If If 3/5 of a number is 36, what is 3/10 of the number ?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Write the expression 7x^3-28xy^2 as the product of 3 factors