Can you please help me -2.5x + 6 + 30x - 4.5

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?

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Qrst is a parallelogram. determine the measure of ∠q pls