One week, Lexy went to the donut shop to bring breakfast for her coworkers and she paid $18.40 for 4 coffees and 12 donuts. The next week she paid $2.40 more for 7 coffees and 9
donuts. Which system of equations can be used to find the price per coffee, x, and the price
per donut, y?*

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units