PLEASE HELP! Which of the following math statements contain variable(s)? Check all that apply. MULTIPLE CHOICE

A. 10 + 6 = x
B. 10 + ___ = 16
C. x + ___ = 16
D. 10 + 6 = 16

About 400,000 people visited an art museum in december. what could be the exact number of people who visited the art museum?

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jame pay at the end?

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.