The average of the first 3 numbers was 28. The average of the next 12 numbers was 38. What was the overall average of the numbers? ***NO SPAM, PLEASE***

Clara solved the equation 7/3x = −2/3 as shown → 7/3x( 3/7 ) = −2/3 ( 3/7 ) x = −14 what is clara’s error?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt