Someone please help me on this question

A(t)=728(1+0.04)^t how much money did aditya originally invest

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4