Select the correct answer. Find the product of the given polynomials.
(5x + 5 – 2.r)(4 + 77 – 1)
9r2 + 351 + 15
21r2 + 156 + 44
21r2 + 246 + 15
21.12 + 440 + 15

Which equation represents the partial sum of the geometric series?

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?