Solve the multiplication first then the division and the subtract them to get something like this:

which simplifies to 29.7 (3 significant figure )
2 x 1.5 = 3 inches
Hope this helps
Answer:
45
Step-by-step explanation:
× 90 = 45
Decrease means to subtract the amount by 45, then
90 - 45 = 45
Well, since 3 candles are 19.50, simply divide. This will make a ratio so that 1 candle will equal 6.50 per candle.
19.50 / 3 candles = 6.50 per candle.
If the distance from R to S is only half then the other half is S to T. The distance between R and S is (5,2). that should give you the answer