Which of the following equations is written in standard form?

Graph the equation by plotting point x=2

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?