Who wants to be my friends

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Which of these terms are associated with communication between neurons? chemical signals, electrical signals, synapse chemical signals, synapse, neurotransmitters synapse, electrical signals, chemical signals synapse, electrical signals, neurotransmitters

Name and describe how to implement one method of embellishment.