a tom tom hoop drum is made up of streched membranes, called heads, which are held tightly across a tubular shell. the drum has diameter 30 cm and height 30 cm. the shell of the drum is made of 5 layers of birch sheathing. a) how much sheating is needed to make the shell?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Write the function for the graph. (1.8) (0,4)

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.