A MATH QUIZ SOMEONE HELP ME

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels

Given the lease terms below, what monthly lease payment can you expect on this vehicle? terms: •length of lease: 60 months •msrp of the car: $28,500 •purchase value of the car after lease: $12,900 •down payment: $1900 •lease factor: 0.0005 •security deposit: $375 •aquisition fee: $300 a.$232.50 b.$279.99 c.$227.50 d.$248.08

Simonne used the following steps to simplify the given expression. 12-3(-2x+4) step 1: 12+(-)+(-3)(4) step 2: 12+6x+(-12) step 3: 12+(-12)+6x step 4: 0+6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? •identity property of addition •inverse property of addition •associative property of addition •commutative property of addition