The second one is d 78 and 82
Answer:
50 percent
Step-by-step explanation:
because sally was tried yesterday and went 25 percent faster today.
Identity property of addition
Remmeber you can do anything to an equaiton as long as you do it to btoh sides
5-6(a+2)=7+a
distribute
5-6a-12=7+a
add like terms
-6a-7=7+a
add 6a both sides
-7=7+7a
minus 7 both sides
-14=7a
divide by 7
-2=a
a=-2