Kala is putting money into a savings account. she starts with $450 in the savings account, and each week she adds $40 . let s represent the total amount of money in the savings account (in dollars), and let w represent the number of weeks kala has been adding money. write an equation relating s to w . then use this equation to find the total amount of money in the savings account after 13 weeks.

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false