Translate each verbal phrase/sentence to mathematical phrase/sentence.
1.) The square of the sum of 3 and b
2.) The product of 7 and x is less than the sum of y and 2
3.) 4 times the square of x divided by 23
4.) The difference of a number and 5 multiplied by 15
5.) Twice the quotient of a number and 4 is 40.​