Which figure must be a rhombus?

A. a quadrilateral with four right angles

B. a parallelogram with four congruent sides

C. a quadrilateral with congruent diagonals

D. a parallelogram with four congruent angles

Solve the following using front-end estimation 2.85+1.34 A. $2+$1=$3 B. $2+$1+$1=$4 C.$2+$1+$2=$5 D.$3+$2=$5

Find the mean of the ending balance in Teresa's account for the week Total balance Number of days 805 Mean (Average) = Daily Ending Balance $320 $206 $245 -$2. $20 $115 $134 -$2 -$2 $18 $20 $805 Total

Suppose a-b=0 what expression would equal ab?

Simplify 1/x-10 divided by 9x/x2-9x-10

The area of a square game board is 144 sq. in. what's the length of the sides of the board

Harriet bought 2kg of potatoes for $1.50 how much would it cost for 1 kg

Bill wants to take 12 lb of chocolate on a trip. If he already has chocolate bars weighing 3 lb 10 oz, and 1 lb 3 oz., how much more does he need to take?

Cora is saving for a vacation. The total cost of the vacation is 1800.36 and she had a year to save the money. How much should she save per month do she can meet her goal?

Use 9 digits to get to the answer 200

Yesterday you borrowed $30 from your brother. every day that you don't pay it back, you owe $2.00 more. so today, day 1, you owe him $32.00; on day 2 you will owe him $34.00; on day 3 you will owe him $36.00, etc.