Question

The chart :

5. 250
10. 500
15. ?
20 1,000
25 1,250 what is messing in the black ? hurry pls

Answer 1

`500 + 5 =550`

Answer 2

Let x be the number of 30 days.

(a) 65 - 2.5x = 55 - 2x

(b) 65 - 2.5x = 55 - 2x
65 - 55 = 2.5x - 2x
0.5x = 10
x = 20
Therefore, each card will result in the value of $15 when they have equal value.