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The imperfect subjunctive can be a very complex mode that even native speakers struggle to use from time to time, so it is not worth get too worked up if you find it difficult. However, we can break the i...

Solve this simultaneously.

Where a= apples and p= pears,

a+p=50 and 2a+3p=130

Multiply a+p=50 by 2 on both sides to get:

2a+2p=100

Then subtract the two equations from e...

The skydiver has potential energy at the top of his/her jump, which is transferred to kinetic energy when he/she jumps. The difference in height between the start of the jump and the point at which his/he...

Because it is an unseen commentary Paper 1 seems very daunting but actually the fact that the text is right in front of you to annotate and refer to makes it much easier for some people. What's most impor...