He formula for the equation describing a straight line is . the value for b1 in this equation represents the

If you answer right ill give brainliest, : )

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

Can someone me with these two circle theorem questions asap?