Pedro sells wooden children's furniture at a crafts market. he charges $65 for a chair. the materials for a chair cost $45 and there is a $75 dollar fee for a booth at the market. how many chairs must he sell to make a profit? (what's the equation)

He must sell 4 chairs to make a profit.

Explanation

Lets assume, the number of chairs he must sell to make profit is  

He charges 65 dollar for a chair. So the total selling price for number of chairs dollar

The materials for a chair cost 45 dollar. So, the total cost of materials for number of chairs dollar and there is a 75 dollar fee for a booth at the market.

Now for making profit.....

So, he must sell 4 chairs to make a profit.

do you have the measurements?

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere