A mathematical puzzle uses four triangles with the dimensions shown below . Which of the following triangles are congruent ?
P and Q
R and S
Q and R
S and P

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?