How do I draw two lines that are perpendicular?

In calculus, why can we treat the dy and dx as if they are parts of fractions, multiplying both sides by dx in separable differential equations for instance.

What is 3.536 as a radical?

A rectangular classroom has an area of 300 square feet. The length of the classroom is 5 feet longer than the width, w. Create an equation in terms of w to model this situation.

72 1/10% of 19 = Show work

It cost the Wilson children $55 to make lemonade. How many glasses must they sell at 75¢ each to make a profit?

Using feet or centimeters when measuring length is an example of using a unit of measure. unit of capacity. conversion. similarity.

A bag of sweets contains red sweets and yellow sweets. The ratio of red to yellow is 3:7. If there are 40 sweets altogether, how many yellow sweets are there?

The quotient of a number and 9 is the same as the difference of 14 and 8

A club is making posters to raise money. the printer charges a base fee of $270 and $2 per poster for supplies. a person sells each poster for $5. how many posters must he sell to make profit of $300?

How to solve 3x-14+x+4+x