York to London is a distance of 175 miles. How many miles an hour faster was the first part of the journey?

If you answer I’ll give 10 points !!

What is the y-intercept of the line given by the equation

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)