Mike observed that 75% of the students of a school liked skating. if 35 students of the school didn't like skating, the number of students who liked skating was

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

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

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?