What is the simplest form of the expression (-12.7y - 3.1x) + 5.9y - (4.2y + x) ?

Sofia, who lives in chicago, knits and sells alpaca-wool scarves. she spends 15 hours knitting one scarf. maria, who also knits, lives in lima, peru. she spends 12 hours knitting one scarf. which of these statements is true?

Y=x-2 y=x^2-2 Solve each system of equations.

Explain how u would find 34*3/4 mentally.

Ryan randomly draws equal sized cards labeled with letters A, B, C, D and F from a hat and records the results in the table. Find the theoretical and experimental probabilities of randomly drawing a card that is labeled with the letter C.

A three-dimensional printing pen uses heated plastic to create three-dimensional objects. A kit comes with one 3D-printing pen and $p$ packages of plastic. An art club purchases 6 identical kits for $/left (180+58.5p/right) $ dollars.

David is standing 5000 feet away from the base of a cell phone tower. The angel of elevation from his eyes to the top of the tower is 78 degrees. If David's eyes are 6 feet above the ground how y'all is the tower?

Interquartile range definition

The y-intercept of the line whose equation is 7x - 4y=8 is

The population, y, of a small town can be represented using a quadratic model. The maximum population, 6,000 people, occurred 20 years after record keeping began. Five years later, the population was 5,950.

The chess club has 18 students. How many different teams of 4 can be formed for competition?