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The cost C, in £, of a monthly phone contract is made up of the fixed line rental L, in £, and the
price P, in £ ,of the calls made. Enter a formula for the cost and, enter the cost if the line rental is
£19 and the price of calls made is £39.
Formula:
£

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that