A spaceship weighs 410,000 kg. what is this number, without units, in scientific notation? PLZ HELPP ASAP!!!

Is the figure congruent? yes or no?

Cuántos triángulos forman un diamante

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?