David and Brad are painting their garages. Each garage is
the same size. David has
painted 0.49 of his
Brad has painted 0.75.
Who has painted the
least amount? 20
4.NF. Z
garage, and
chi & Marde

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.

If bradley saves for 4 weeks, what is the total amount of money he will have saved?