Seven-tenths of a number decreased by thirteen is equal to three-tenths the number increased by 13

Simplify y^4 (y^3) = y^[1]

Reduce the ratio: 15 min: 1hr

What is the answer for (1-4) - 2

What is the least number that rounds to 80 when rounded to the nearest ten?

When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 19% of the eggs are yellow, and the rest green.

A group of scientists studied the effect of a chemical on various strains of bacteria. Strain A started with 6000 cells and decreased at a constant rate of 2000 cells per hour after the chemical was applied.

How can I tell if a triangle with side lengths 10, 24, and 26 is a right triangle?

Determine whether the statement is always, sometimes, or never true: 1) A horizontal line is parallel to the x-axis

15% of what number is 1?

Does parallel lines meet to form an acute angle?