The cost of the pencils (C) is directly proportional to the number of pencils (n). When the proportionality sign (∝) is replaced with an equal sign (=), the equation is \(x = k y\). The constant value ...

In this Punnett square the top row shows the female alleles and the left-hand column shows the male alleles. The probability of the offspring being Aa is 50%. The probability of the offspring being aa ...