How do I solve -2.4 + 6.7x = 8.3 I have to use bullet points to show how I found the answer.

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!