How do I find sales tax ex. 8% sales tax on $19.00

Kelly got 4 out of 50 problems wrong on her math test. What percent did she get correct?

What is the product? 2⋅ (-8) ⋅5⋅ (-2)

What is 23+90-12+13x80

Rebecca has five coins worth $.65 in her pocket. Is she only has quarters and nickels how many quarters does she have?

0.08x + 0.05 (3,400 - x) = 245

Amie has 9 cats. each cat eats 1/3 can of food each day. how many cans of food are used each day?

Johann walked 1.2 feet per second. how far, in feet did he walk in 5 seconds

A snake habitat at the nature center is made by connecting two terrariums the first terrarium is 40 cm long 25 cm wide and 20 cm high the second terrarium is 25 cm long 30 cm wide and 20 cm high

Evaluate the expression 72/x2-2 for x=3

Mike has $22 in his bank account and deposits $11.50 each week. At the same time, Tim has $218 in his account but is withdrawing $13 each week. When will the accounts have the same balance? How much money will each of them have after 12 weeks?