A televison set can be bought for $860 cash or on hire purchase with $100 down payment and 12 monthly installments of $70 each. The amount that may be saved by buying the television for cash is A) $80
B) $100
C) $940
D) $960​

Nine more than four times a number is the same as one less than twice the number. find the number?

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.