Alexandra rolls a standard six-sided die, numbered from 1 to 6. Which Word or Phrase describes the probability that she will roll a number between 1 and 6 ( including 1 and 6)?​

7x+8y=-18, 4x-9y=-3 solve the system of equations

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !