Joan reads that the mass of an average elephant's brain is 34 kilograms greater
than an average man's brain. How many
kilograms is an average elephant's brain?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.