A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a radioactive substance. After 27 hours, 50 mg of the substance remains. How many milligrams will remain after 36 hours?

25 000,000/10,000 No calculator

Which shows two triangles that are congruent by ASA? 2 right triangles are connected at one side. The triangles have 2 congruent sides and one congruent angle. 2 triangles are connected at one side. The triangles also have 2 congruent angles.

What is the expression is factored form? X^2 + 14x + 48

A prism has a square base whose edges each measure 5 cm. The ratio of its height to its width is 4:1. Find the volume of the rectangular prism in cubic centimeters.

Which is the cheapest per ounce: a 2-L bottle (67.6 oz.) of root beer at $1.49, a six-pack of 20-oz. bottles at $2.49, or a twelve-pack of 12-oz. cans at $2.99?

Write the comparison as a ratio in the simplest form using a colon. 8 pounds to 10 pounds .

The Yoon family's monthly budget allowed them to spend $175 for personal expenses. To prepare for an upcoming camping trip in June, their personal spending totaled $455. By how much did they exceed their budget that month?

A rectangular deck is 12 ft by 14 ft. When the length and width are increased by the same amount, the area becomes 288 sq. ft. By how much were the dimensions increased?

Line p has a slope of - 3/4. Line q is parallel to line p. What is the slope of line q?

A local charity sponsors a 5K race to raise money. It receives $25 per race entry and $5,000 in donations, but it must spend $5 per race entry to cover the cost of the race.