The ability to roll your tongue is inherited genetically from parents if either parent has the dominant trait t. children of two parents without the trait will not be able to roll their tongues. part a: show how the combinations can be modeled by the square of the sum. part b: predict the percent of children that will both have dominant genes, one dominant gene, and both recessive genes

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.

y=-2x+1500

step-by-step explanation:

+1500

2 over one