Enjoy borrowed $1500 from her parents for car repairs. she plans to take 10% of her 450 weekly income to pay them back. at the is rate how many weeks will it take to pay off the loan

10% of 450 dollars is equal to 0.1×450 or $45.
If she pays her parents $45 each week, it will take her 1500 ÷ 45 weeks to pay them back.
1500 ÷ 45 = 33 
Even though this would ordinarily be rounded down to 33, Her loan would not be paid off at the end of 33 weeks, so it must be rounded up to 34 weeks.

It will take Enjoy 34 weeks to pay off the loan.

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.