The columns of the table tell us whether the student is a male or a female. The rows of the table tell us whether the student prefers dogs, cats, or doesn't
have a preference.
Notice that there are two variables-- gender and preference-- this is where the
two in two-way frequency table comes from.
The cells tell us the number (or frequency) of students. For example, the 36 is
in the male column and the prefers dogs row. This tells us that there are 36
male students who prefer dogs.
How many female students prefer cats?
hi

correct answer:

a + bi

answer is 1

step-by-step explanation:

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.

3xy cannot be combined with the others

2x, -5x and x are like terms