Solve 3(2+4)÷(10-1) solve this problem math 5th grade

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?

Robert has 78 tomato lants and 56 cucumber plants .he wants to plant them in rows that only have one type of plant in each row with the same number of plants in each row. how many plants should he put in each row and how many rows of each type of plant will he need