Does 3(6x - 2) - 7 = 18x - 13?

My favorite songstress gives away 25% of this side of her signature fragrance collection to her charity last month her sales were 1200 how much of her sales did she donate

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?

Arectangular garden measures 5m by 7m. both dimensions are to be extended by the same amount so that the area of the garden is doubled. by how much should the dimensions increase, to the nearest tenth of a metre?