PLS HELPP Which expression is equivalent to (2^7⋅3^−5 ⋅9)^4? 2^7⋅3^−5⋅9^4

2^11⋅3^−1⋅9^5

2^28⋅3^−20⋅9^4

2^28⋅(−3)^20⋅9^4

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?