What are square numbers

Simplify the following expression 1/3+7/15

A scientist is working with 4 meters of gold wire. How long is the wire in millimeters?

The sum of 5 consecutive even numbers is 270 what is the second number in this sequence

Hector buys a varsity jacket from a clothing store in Arlington. The price of the jacket is $110 and the sales tax is 8%. What is the sales tax?

Sally has 6 flowers three of the flower are yellow the rest are red how many are yellow

A paper airplane thrown off a balcony 60 feet above the ground descends at a rate of 2 feet per second. Select the inequality that represents the time, x, when the airplane will be less than 6 feet above the ground. A.-2x + 60 < 6 B. 2x + 60 < 6 C.

How many non-empty subsets of { 1, 2, 3, 4, 5, 6, 7, 8 } consist entirely of odd numbers?

What should be added to 8 to make the sum 0

A company charges $6 to make a pattern for an order of T-shirts and $11 for each T-shirts it produces from the pattern. the expression $11 + $6 represents the cost of n T-shirts with the same pattern.

This is from my algebra, is x/2 equal to - 2x