Insert the specified number of arithmetic means between each pair of number.  4 and 84    4 arithmetic means        -45 and -15    3 arithmetic means        3.5 and 6.5    4 arithmetic means        25 and 52    2 arithmetic means        510and  715    1 arithmetic mean       ​

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

the answer would be 0.54