Factorise fully

5ac - 10a2b + 30a

Four times the difference of a number and seven is 12

A gift box's rectangular base has a perimeter of 92 centimeters. The length of the base is one more than twice the base's width. Find the width (in centimeters) of this rectangular base.

What set of transformation to have been performed on triangle XYZ to form triangle X"Y"Z" A. Dilation by a scale factor for followed by reflection over the X axis B. Dilation by a scale factor of two followed by reflection of the Y axis C.

Evaluate - 6-9: (-3) ?

In the right triangle shown, Angle A = 30° and AC = 18. How long is AB? Answer exactly, using a radical if needed. 30° 18 CB

The guidelines for prescribing a particular drug specify a dose of 300 mg per kilogram of body weight per day. How should you find how much of the drug should be given to a 30-kg child every 8 hours?

Marcos is cutting ribbons for a craft project. each ribbon needs to be 3/4 yards long. if each piece is always within plus or minus 1/16 yards how long are the shortest and longest pies of ribbon ... i don't get it

Find The diagram is not to scale. m 96degree 118degree 115degree 104degree a. 107° b. 117° c. 63° d. 73°

How many pumpkin plants would be in 2 rows

Which of the following is equivalent to the expression below (-3+5) + (m-11