Answer:
710
Step-by-step explanation:
7(1)3≈710 (after 1 is coming 3, and it's less than 5, so 1 remains the same, and 3 turns 0)
there are 72 campers at the summer camp because if we just multiply 8 times 9 equals 72
15.50+1.50x =26
1.50x = 10.50
x = 7
answer: he can ride 7 in one day
The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.