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simplify each expression, show ur work

1. 8 + (9t + 4)

2. 56ab

b

find each quotent, simplify if necessary

1. -46 ÷ (-2)

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i