10 points! In this triangle, what is the value of x?

Enter your answer, rounded to the nearest tenth, in the box.

x =
km

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

What is the solution to the equation in the & show work i’m very

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items