What is 34 + 35, I had a hard time thinking

Why do interests rates on loans to be lower in a weak economy than in a strong one

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*