Select all the equations that are true when x is -4. Multiple select question. A) −8=2x B) −12=x·−3 C) −12=x+x+x D) x4=−1 E) x+4=−8 F) x2=−16

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase