Whick set or sets does the number -22a: whole numbers onlyb: rational numbers onlyc: integers and rational numbers onlyd: whole numbers, integers and rational numbers

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

Which statement justifies why angle ebc measures 90?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation