What is one solution of the equation x^2 - 21.75x = -15.75?

you for the !

Pls an ice cream shop sells 5 times as many cake cones as waffle cones use variable x to represent the number of waffle the ice cream shop sells and use this variable to write an expression for the number of cake cones the ice cream shop sells. enter the expression for the number of cake cones the ice cream shop sells

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?