You own a small jewelry store. You increase the price of the jewelry by 125%.
Work with a partner. Use a model
to estimate the selling price of the
jewelry. Then use a calculator to
fi nd the selling price.
a. Your cost is $250. What is the formula that I use to solve this?

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?