The ratio is 51: 9. how can i write that as a fraction

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?