How to tell if an equation has no solution without solving?

How could you calculate 65% of a number explain

A gourmet chocolate bar weighs three-fourths pound. There are 16 pieces on the chocolate bar. How much does each piece weigh?

The ratio of the angles in a triangle are 10: 17 : 25. what is the measure of the smallest angle

Solve for r. You must write your answer in fully simplified form. 11r = - 4

Triangle S T U is shown. The length of T U is 21.3 and the length of S U is t. Angle U S T is 118 degrees and angle S T U is 34 degrees. Which expression gives the exact value of t? StartFraction 21.

15%of $30 as a decimal

The ordered pairs model an exponential function, where j is the function name and e is the input variable. { (1, 10), (2, 50), (3, 250), (4, 1250) } What is the function equation in sequence notation?

Simply and reduce to lowest terms a + [a + b - a - (2a - b) ]

What percentage of a data set is represented as Q1?

Danielle can solve 4 problems in 12 minutes. At this rate, how many can she do in 18 minutes?