Food sorting company SQUASH is considering the purchase of new equipment. Labelling machines cost $60k each, weighing scales $50k each, and forklifts $10k each; SQUASH has $900k to invest. The estimated profit from each type of equipment is $0.4k, $0.3k, and $0.25k, respectively. SQUASH has technicians for at most 50 units of equipment; a weighing scale counts 2 units, and a labelling machine or forklift counts 1 unit. Maintenance facilities at SQUASH are limited to a maximum of the equivalent of 35 forklifts; a labelling machine needs twice as much maintenance facilities as a forklift, and a weighing scale needs 1.5 times as much maintenance facilities as a forklift. Given these constraints, use Matlab for calculating the number of each machine type that should be bought for maximizing the profit for SQUASH.