What is the value the (value) of the digit in the tens place 524?

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0