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This question asks you to build the plural form of some nouns.  Some of them follow the regular pattern for building the plural: adding an "e" at the end of the word, or an "n" if the ...

The conditional tense is used to say what would happen if something else were to occur or to talk about intentions to do something. 

If I was was rich, I would buy...

Find from student what the first step is (get a or b in terms of the other).  

a = 2.8 x10^5 = 0.28x10^6

a + b = (0.28 + 1.6) x 10^6

= 1.88 x10^6

ii)

Know that a^x x b^y...

Firstly, get all of the x's onto one side of the equation and all of the numbers onto the other. To make it easier at the end, subtract the smaller value of x so that it doesn't become negative: 3x-10=12x...

To combine these two fractions into one, you have to multiply the equation by the denominators in order to make a common denominator: 5(x-5)/(x+1)(x-5) + 6(x+1)/(x+1)(x-5) Now that the denominators are th...