Which statements about doubling an investment are true? Check all that apply.
An investment of $5,000 will double in 6 years at an annual compound interest rate of 12%.
An investment of $1,000 will double at an annual compound interest rate of 18% in 6 years,
An investment of $350 will double in 9 years at a compound interest rate of 8%.
An investment of $2,000 will double at a simple interest rate of 5% in 20 years.
An investment of $700 will double in 12 years at a simple interest rate of 6%.

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps