Is (-1, 2) the solution to the system involving y=-1x+1and y=3x+5?

yes or no

and show work

What's linear programming?

Find the circumference of a circle that has a radius of 7 cm. Use π=227.

A bag contains: 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, 2 yellow marbles. A marble will be drawn from the bag and replaced 200 times.

Given - 4x/7 >10 find the solution set

Order least to greatest 3/40, 4/25, 1/10

What happens when blue sounds like thunder, but thunder tastes like red?

A cone has a diameter of 18 units and height of 8 units. What is its volume? 72π cubic units 216π cubic units 648π cubic units 864π cubic units

Samantha and Luis are attempting to determine how many library books each seventh grade student checks out at the same time. Samantha surveys every other seventh grade student leaving the library. She samples a total of 40 of the 200 seventh graders.

What is the formula for a finite geometric series?

what is the future value at the end of 5 years of $400 loan that charges simple interest at an annual rate of 2%