Oak has a density of 650 kilograms per cubic meter. what is the mass of a block of oak wood with a volume of 12 cubic meters?
a) 7800 kg
b) 662 kg
c) 638 kg
d) 54 kg

What is the equation of the graph below? y=sec(x)-4

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area