Chelsea did yard work for 7 hours last weekend. her parents paid her $40. how much did she get paid per hour?

Which geometric principle is used to justify the construction below?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio

Write as a product of two polynomials. 2(3–b)+5(b–3)^2