Answer:
175
Step-by-step explanation:
a30 = a1 + f × (n-1)
f= difference between numbers
<span>b. 4+12÷2=4+6=10
c. (20–5)•3=15•3=45</span>
Answer:
the number is 20
Step-by-step explanation:
let 'n' represent the number
2n + 9 = 49
2n = 40
n = 40/2 = 20
Answer:
the answer is 175
Step-by-step explanation:
you will do 2500*7/100
Answer:
1232
Step-by-step explanation:
1232 6th grades went on the trip because 160p multiplied by .77, the amount of chaired covered by 6th graders, is equal to 1232.