At a school the ratio of boys to girls is 11 : 9
there are 124 more boys than girls.
work out the total number of students at the school.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte