David purchased some cookies at the cost of 5 for $4 and sold 4 for $5. he made a profit of $90. how many cookies did he purchase and sell to make that much money

Wrote and expression for the difference of p and 4

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10