In a nuclear test explosion, some strontium-90 is released. this substance has a half-life of 29 years. What part of strontium-90 remains after 60 years? plus the rate of decay of that element is 2.44% per annum

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

What is the equation of a line passing through (-6,5) and having a slope of 1/3

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *