PLS HELP! 20 points! U WILL BE BRAINMASTER Aria is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Aria will earn $20 every time one of her songs is played in a commercial and she will earn $80 every time one of her songs is played in a movie. Aria earned a total of $400 in royalties on 11 commercials and movies. Determine the number of commercials and the number of movies on which Aria's songs were played.

Arias songs were played on commercials and on movies

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.

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.