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You are traveling on the interstate highway at a speed of 65 mph. What is your speed in km/h?

Question #de480

A number is composed of 4 thousands and 21 tens. What's the number?

How many days?

Dan is twice the height of his sister Julie plus four inches. Dan is 72 inches tall. How tall is Julie?

Question #01dd5

Question #d72d4

Question #2ed16

How do you add #\frac { 1} { 4} + \frac { 1} { 16} + \frac { 5} { 16} + \frac { 3} { 8}#?

Question #7e5f1

How do you evaluate #7(  2.4) + 6(  7.4)#?

A radioactive substance has a half life of 120 years. Presently, there are 60 grams of the substance. When were 600 grams present?

How do you evaluate #(0.8x ^ { 9} ) ( 0.1x ^ { 2} )#?

How do you simplify #\frac { 3v ^ { 2} + 20v + 25} { 3v + 5}#?

Question #99086

Five less than 6 times a number is the same as the number plus 10. What is the number?

Question #470d9

145% of what number is 870?

How do you subtract #9/( y + 1)  3/ ( 4y + 4)#?

Question #ddb76

How do you simplify #(z ^ { \frac { 1} { 3} } \cdot x ^ {  2} ) ^ { \frac { 5} { 3} }#?