Sara buys 453 grams of strawberry and has 23 grams left. how many did she use

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?