3 times a number increased by seven is less than eleven

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?