How can explain to me what are the meaning of unit plan​

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

Find an equation in standard form of the parabola that passes through (-2, 9), (-4, 5), and (1, 0)

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present