Calculate the area of the composite figure​

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?