Solve for r.

-2r = 18

P=

If the sales tax of an item is $11.90 & the item cost 390 before tax. what is the sale tax rate

Amy has 1 foot of string. She cuts the string into fourths. How many inches is each piece of string?

If y = 3x + 2, find the value of y when x = - 2

The scale on the map is 1 cm to 10 km. The distance from Clevend to Cincinnati is 40cm. The scale on the second map is 1 cm to 50 km. What is the distance from Clevend to Cincinnati on the second map? Explain your reasoning

If jimmy has 2 apples and he eats 1 how many does he have left

What is the hydronium ion (H30+) concentration in milk if it has a ph of 8.2

Let f (x) = 3x2 - 2x + 6 and g (x) = 7x - 4. Identify the rule for f+g. A 3x2 + 7x + 10 B. 3x2 - 9x + 10 C. 147x2 - 182x + 62 D. 3x2 + 5x + 2

Write 0.000000123 as a power of 10.

Determine which solution is correct for solving 5/7y = 6 using reciprocals

Each newborn baby has a probability of approximately 0.49 of being female and 0.51 of being male. for a family with four children, let x = the number of children who are girls.