Bananas cost $3 a bunch and apples cost $0.50 each. if b represents the number of bunches of bananas and a represents the number of apples, which of the following expressions represents the total cost?

3a+.50b=c. C stands for cost. Since each apple is 3 dollars, you do 3 times however many apples there are and same for bananas. There can't be a specific ANSWER because it doesn't tell us how many apples of bananas there are, and it says to choose the expression. If 3a+.50b=c is not there, it's probably 3a+.50b, but they are the same thing.

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6

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.