Juanita is 1.6 meters tall, wants to find the height of a tree in her backyard. From the tree’s base, she walks 13 meters along the tree’s shadow where her shadow exactly overlaps the end of the tree’s shadow. She is now 6.5 meters away from the end of the
shadow. How tall is the tree?

I beg please help me

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Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

The answer is 7.2 how would you put this as money