The diagram shows a lawn with a fence along one edge. 12 m
17 m
Fence
20 m
One can of weedkiller can cover 100 square metres.
Each can costs £19.75
Work out the total cost of the cans of weedkiller needed to cover the lawn.
You must show some working.

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?