Can someone help me?
Write the polynomial
4x exponent 2-6x exponent 6 + 2x exponent 3 +12

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

What is the value of x when x + 7 = 21?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?