Girls to boys at concert 2: 7 . 250 more girls than boys, how many boys

The Girls:Boys ratio of 7:2 means that there are 7 girls for every boy.
As there are 250 more girls this relates to the 7-2 part of the ratio.
We can then divide 250 by 5 and multiply by 2 to get the number of boys as 100 boys

answer:

a)  

b) degree 2. trinomial

step-by-step explanation:

a) the area of a rectangle can be calculated with:

where the lenght is l and the width is w.

then, you know that the area of this rectangle can be found with:

apply distributive property and add the like terms:

b) the highest exponent of this polyonimal is 2, then its degrree is 2.

a polynomial that has one term is called monomial.

a polynomial that has two terms is called binomial.

a polynomial that has three term is called trinomial.

since this polynomial has three terms, it is a trinomial.