Rolando, Anna, and Erika were collecting trivia cards. Rolando had 210 cards. Anna had twice as many cards as Rolando, and Erika had as many cards as Rolando and
Anna together. How many trivia cards did the three friends have altogether?

Which expression is equivalent to? assume x > 0 and y > 0.

The los angels ram scored 26, 30, 48, and 31 pts in their last four games. how many pts do they need to score in super bowl liii in order to have an exact mean average of 35 pts over five games. write and solve and equation. use x to represent the 5th game.

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet