Stanley makes a $500 investment and then carefully tracks the value as time goes by. At first, the value of Stanley's $500 investment changes by -$4 each day. After how many days, did value of the investment change by -$28?

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

42.4

step-by-step explanation:

convert to decimal