Simplify the expression. 7x − 5(x − 3) − x

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.