How many solutions do these systems of equations have?

1) x=-4y+4 and 2x+8y=8

2) y=4x+3 and 2y-8x=3

3) x-3y=15 and 3x-9y=45

4) y-5x=-6 and 3y-15x=-12

What is 7 kilometers in miles

How many times does 8 go into 50?

Jeff is 5 feet tall and casts a shadow 30 inches long. How tall is Marisol if her shadow is 24 inches long?

Solve - 5sqrtx = - 15. A. x = - 9 B. x = 7 C. x = 9 D. x = - 7

Me. Rodríguez planted24 tulips in her flower bed. one of the tulips 1/3 are red. How many tulips are in red?

Which expression is equivalent to (4f^2/3) / (1/4f) A. 16f^3/3 B. f/3 C. 3/16f^3 D. 3/f

Miriam's house has a market value of $125,000. The tax accessor evaluated her property tax rate to be 42%. What is the assessed value of Miriam's house? Use the formula: Assessed Value = Market Value x Rate.

A set of data with 100 observations has a mean of 267. There are six outliners in the data set, which have a mean of 688 if the six outliners are removed, what is the mean of the new data set?

The minimum temperature for a particular day was 4 Fahrenheit below 0 the maximum was 16 Fahrenheit higher what was the maximum temperature

The top of a bench has a length of 5ft and a width of 2ft. A second bench is similar to the similar to the first bench. The top of second bench is 3ft wide. What is the length of the top of the second bench?