What is the number twenty one thousand and sixty four in figures?

Write the following as a base and exponent

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.