tim has $45. he buys pens that cost 2.75 each until he has only 12.00 left. if x represents the number of pens purchased ... write an equation to determine how many pens tim bought

What are the solutions to the quadratic equation x2 - 16 = 0? NA O O IN x = 2 and x=-2 x = 4 and x = - 4. x = 8 and x = - 8 x = 16 and x = - 16 O

Triangle DEF is similar to triangle ABC, and the length of EF is 5cm. What are the lengths of sides DE is 6cm and DF is 8cm centimeters?

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work (round to the nearest tenth)

What is 5 over 18 divided by 2 over 6

An item costs $4 before tax and $4.32 after sales tax. What is the sales tax rate?

The Rodriguez family went to dinner at Pasta Palace. Mr. Rodriguez ordered a meal for $6.25; Mrs. R ordered a meal for $7.50; the 2 children ordered individual pizzas for $4.99 each. The sales tax rate was 7.25% and they left a 15% tip.

If people blink about 13 times per minute, how many times do they blink in 7 hours?

Shawn made fudge brownies and peanut butter brownies. Each batch of fudge brownies makes 9 pans. Each batch of peanut butter brownies makes 7 pans. Shawn made 13 batches and ended up with 97 pans of brownies.

Twelve cubic inches of soda are left in a can that holds 20 cubic inches. What percent of the soda has been drunk? What percent of the soda is left in the can?

Is it true that (x+4) = x² + 16? Explain.