Find the sum of the first n terms of the harmonic series where n is an integer variable greater than one

Hannah has 6 orange sweets and some yellow sweets. Overall, she has n sweets. The probability of her taking 2 orange sweets is 1/3. Prove that: n^2-n-90=0

Perry invests $2,832 in a retirement account with a fixed annual interest rate of 3% compounded 2 times per year. What will the account balance be after 13 years?

What is the angle of the measurement whose angle is 4 times its complement?

My dinner was $200 but I got 15% off because I had a coupon. We left a 20% tip. How much did dinner cost me?

0.5 divide blank = 0.05

The Sum of a number and 5 times the number is 18. Find the number

Which net matches the figure? a triangular prism a net of a square and four triangles a net of three rectangles and two triangles a net of four triangles a net of a hexagon and six triangles

A number cube lands showing an odd number it is rolled a second time and lands showing 6

write five pairs of integers (a, b) such that a divided / b is equal to 2 is is equal to - 3 one such pair is is 6 and - 2 because 6 divided by minus 2 is equal to minus 3

How do you write 21/7 as a whole number