3.1 The learners sell 340 vetkoek for 15 weeks. They charge R12.00 for each vetkoek.
Calculate the profit they will make if the cost for each vetkoek is R4.00 and the
costs of all ingredients is R623.48 per week.​

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Percent increase and decrease. original number: 45 new number: 18