The difference is not constant therefore there cannot be an 11th term that is correct.
Compatible numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally. They are useful in estimating the sum, difference, product, or quotient.
Use the rule of 3 simple
x mean 100%
3 mean 15%
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x = 3*100/15 = 300/15 = 20
hope this will help you
Let's try plugging in some negative numbers. Let's do x=-1. 5+-1=4. So we know that if we put in a negative number for x, then n will be positive. But what if we do a number greater than -5, because 5+-5=0. So let's try x=-6. So 5+(-6)=-1. Hmm. So here it is. We know that any number under -5 will be positive and any number above -5 will be negative.
4 would be your answer lol
