Awnser plz! what is 4.031 in expanded form! also these 9.68 me plz

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

Find the solution(s) to x^2-14+49=0