I need answers quickly . Can someone explain how to find an nth term of a quadratic sequence? Not gcse level or using anything complicated, i'm really new to the topic. Thanks.

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

What is the distance between the points (2, 5) and (5,9)?