In a school of 600 students, there are seven times as many right-handed pupils as left-handed pupils. How many pupils are right-handed?

What signals you that factoring by grouping is the best method to use when factoring a problem?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤