Sarah's restaurant bill came to US$18.80. She usually leaves a 15% tip. How much tip did she leave?

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?