The lengths of the three sides of a triangle are x cm, 2x cm and 3x cm. Its perimeter is 30 cm.
Evaluate x.​

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?

Would greatly appreciate these 3 answers