PLS HELP ME I NEED HELP BAD I DONT UNDERSTAND THIS

Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.

Equation for the calculation double 2 and then add 5

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale