70 = - 2 (m + 7) + m
2.4!
2,4!
115% of 4880 – 85% of 1640 = ?
-0,011= X_D×3,31×10^(-7)+((-0.020-X_D×1,96×10^(-5))/(3,31×10^(-7) ))×6,63×10^(-7)
Nine trucks are equal in tweight to six trucks and four sedans. What fraction of the weight of a truck is the weight of a sedan?
250 ÷ 5 × 2/350 + 26/7 = ?
12 2/3 ÷ 6 1/3 + 7 1/7 x 2/5 - 12.5% of 12 = ?
me distance and by running some distance. On Monday his walking time is twice his running time and reaches the school in 30 minute...
