samantha is doing chores at home. she can vacuuma room for $2 or wash and fold a load of laundary for $3. one month she accomplished 25 chores and earned a total of $64. Write a system of equations to model the situatio, and then determine how many of each type of chore she did that month.

Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3