In the below figure, if all the 3 triangles, red, blue and the figure itself, are all equilateral triangles, find the measures of angles ‘a’ to ‘e’ as shown in the figure. ( Give reasons)

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

What is coefficient of the term of degree of degree 5 in the polynomial below

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.