Please help! Is 2v+8.3+2v-6.1 equal to 4v+14.4 Is 18a+45 equal to 9(2a+5)
Is 3(a+1.5) equal to 3a+1.5

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10