Shen's mother gave him $10 to go buy groceries. he picked up a gallon oh milk for $3.49,tree pounds of oranges that cost $1.14 per pound, and a box of cereal for $3.46. shen used front end estimatin to determine whether he had enough money for the groceries, how much did he estimate the totla cosy would be

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Write the linear inequality shown in the graph. the gray area represents the shaded region. y> -3y+5 y> 3x-5 y< -3x+5 y< 3x-5

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.