Answer:
22 assuming the * was a mistake im not sure if u meant the * if u did mean in what does it mean
Step-by-step explanation:
The 7th tower will be 161 cm tall. You take 115 and divide it by 5 and then you get how much each cube is ,then you get 23 per cube then you multiply 23 by 7 and that's how you get your answer.
Given:
The cost of a laptop increased by 25% between 2015 and 2019.
In 2019, the laptop cost £1000.
To find:
The cost of the laptop in 2015.
Solution:
Let x be the cost of the laptop in 2015.
The cost of a laptop increased by 25% between 2015 and 2019. So, the cost of the laptop in 2019 is
Cost of laptop in 2019 =
=
=
In 2019, the laptop cost £1000.
Therefore, the cost of the laptop in 2015 is £800.
The correct answer would be (-1, 2)