An examiner marks 70 papers. The mean mark is 68 per paper. What is the total number of marks awarded by the examiner? A. 4312
B. 3968
C. 4560
D. 4760

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

Describe how making an ‘and’ compound sentence effects your solution set