The half-life of a radioactive substance is 50 years. If you start with some amount of this substance, what fraction will remain in 50 years? What fraction will remain in 100 years?

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

To determine the number of deer in a forest a forest ranger tags 280 and releases them back