1a. [1 mark]
A factory produces shirts. The cost, C, in Fijian dollars (FJD), of producing x shirts can be
modelled by
C(x) = (x - 75)2 + 100.
Find the cost of producing 70 shirts.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.